He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson 

He is very dull and he cannot understand his lesson 

He is too dull to understand his lesson 

He is so dull that he doesn't understand his lesson

He is too dull that he cannot understand his lesson 

He is being dull that he cannot understand his lesson