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A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B

A manned mission (a) to Mars would allow a more (b) in-depth study of the Red Planet, and many have argued that construction (c) a permanent base on Mars is much more (d) practical than build one on the Moon (e) Here, which two underlined sections need to be changed to correct the sentence?

a, e

b, c

c, e

a, d

b, d

SUST2018ইংরেজি - গ্রামার ও ভোকাবুলারিPin Point ErrorUnit-B