20. The taxi was so slow that we might as well _________ on the bus.

　　 A. go　　　　　 B. have gone　　　　 C. to go　　　　 D. having gone

19. - Remember the first time we meet Jim?

　 　-Of course I do. You ________ 　in the library.

　 A. had read　　　 B. were reading　　　 C. have read　　　　 D. read

18. Bank statement helps you__________ where your money is going.

　 A. keep track of　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B. put up with

C. come up with　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D. fit in with

17. - Have you been to the Great Wall?

　　-Perhaps not in my memory. ________, it might have been during my early childhood.

　 A. If any　　　　　　 B. If so　　　　　　 C. If ever　　　　　　 D. If not

16. When asked the reason for moving to the USA, he said, “Soccer is huge around the world apart from America, so that’s_________ I want to make a difference.”

　 A. where　　　 　　　B. why　　　　　　 C. what　　　　　　 D. how

15. Mr. Smith is ________ a good professor ________ all of us students respect.

　　 A. such; that　　　 B. such; as　　　 C. so; that　　　　 D. so; as

14. “I’d like to give my thanks to those _________ help my son will be able to survive his terrible disease,” said the mother on TV.　

　 A. who　　　　　　　 B. that　　　　　　 C. with whose　　　 D. with their

13. Whether you believe it or not, it is _________ that causes your illness.

　 A. because of your overweight　　　　　　　　　　　　　　　　　 B. you are so overweight

C. because you are overweight　　　　　　　　　　　　　　　　　 D. your being overweight

12. Such crimes may be so complex that months or years go by before anyone______ them.

　 A. discovered　　 B. would have discovered　 C. will discover　　 D. discovers