20. ---How do you like the restaurant where we ate yesterday evening?

---_______. I had never had so nice food before.

A. It coundn’t be better　　 B. It was better　

C. I had no idea　 　　 　　　D. It’s hard to say

19. The book _____ on the ground for ten minutes but no one has picked it up.

A. is lying　　　　　 　　　　　　 B. has laid　　　

C. has been lain　 　　　　 D. has been lying

18. It was a long time _____ he realized that he had made a serious mistake in his work.

A. after　　　 B. before　　　 　　　 C. when　　　 　　　 D. then

17. ---Do you think it’s a good idea to make friends with your students?

---_____, I do. I think it’s a great idea.

A. Really　　 　 B. Easily　　 C. Actually　　　 D. Fluently

16. The old couple live in a house the window of _____ faces south.

　 A. that　　　 B. whose　　　　 C. which　　　 D. it

15. The parent insisted that the boy _____ his homework before going out to play.

A. finishes　　　　　　　 B. finish　　　

C. would finish　　　　　 D. finished