Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. 

21. "Can I borrow your eraser, Sol?" -  "__________________" 

A. No, it's not good. B. Oh, that's right. 

C. Why's that? D. Sure. Here you are. 

22. “Would you like something to eat?" –“______________. I'm full.” 

A. Yes, I would B. No, no problem C. No, thanks D. Yes, it is