21. --- Do you mind if I keep pets in this building?

   --- ________________

A . Great! Love pets.         B . Of course not . It’s not allowed here.

C. I’d rather you didn’t       D. No, you can’t

22. In ______ film Cast Away , Tom Hanks plays ______ man named Chuck Noland.

A. a, the        B. the, a         C. the , the          D . a , a

23. My class teacher as well as other teachers_____ very kind to me.

A .are          B. is            C. do              D. does.