23. ―What’s the matter? You look worried and restless.

　　 ―Oh, nothing really serious. As a matter of fact, I ______ of my graduation thesis. I have to hand it in soon.

　　 A. am just thinking　　　　　　　　 B. just thought

C. have just thought　　　　　　　　 D. was just thinking

22. ―What about 10 o’clock tomorrow morning?

　 ―I’m afraid I can’t make it. I _________ then.

　　 A. am going to take an exam　　　　 B. am taking an exam

　　 C. will be taking an exam　　　　　 D. an to take an exam

21. ―Do you have anything to do this afternoon?

　 　―What’s up?

　　 ―Let’s go shopping. It’s said that Jinying Shop _____, and all the sweaters are sold at half price.

　 　―Why not?

　　 A. has closed down　　　　　　　　　 B. was closing down

C. closes down　　　　　　　　　 D. is closing down

20. One of them told me, “This is the first time I ________ to the capital to attend the flag-raising ceremony.”

　　 A. came 　　　　　　　　　　　　　　 B. come

C. have come　　　　　　　　　　　　 D. had come

19. The news came as no surprise to me. I ______ for some time that the factory was going to shut down.

　　 A. had known　　　　　　　　　　　　 B. knew

C. have known　　　　　　　　　 D. know

18. My mind wasn’t on what he was saying so I’m afraid I __________ half of it.

　　 A. was missing　　　　　　　　　 B. had missed　

C. will miss　　　　　　　　　　 D. missed

17. With more forests being destroyed, huge quantities of good earth _______ each year.

　　 A. is washing away　　　　　　　　　 B. is being washed away

C. are washing away　 　　　　　　　 D. are being washed away

16. He was hoping to go abroad; but his parents __________ that they won’t support him unless he can borrow money from the bank.

　　 A. were deciding　　　　　　　　　　 B. have decided

C. decided　　　　　　　　　　　 D. will decide

15. -What were you up to when she dropped in?

　 　-I _________ for a while and __________ some reading.

A. was playing; was going to do　 　　　　 B. played; did

　　 C. had played; was going to do　　　 D. had played; did

14. -Have you heard from Janet recently?

　 -No, but I ______ her over Christmas.　

　　 A. saw　　　　　　　　　　　　　 B. will be seeing

C. have seen　　　　　　　　　　　 D. have been seeing