23. A. topic　　　　　　　　　 B. conversation　　　　　　 C. discussion　　　　　　　　 D. message

22. A. make　　　　　　　　　 B. think　　　　　　　　　　　　 C. stand 　　　　　　　　　　　 D. find

21. A. determination　　　　　　 B. decision　　　　　　　　　 C. attempt　　　　　　　　　　 D. anxiety

19. Many students are crazy about the computer games. They just can’t tear themselves away from them ______ they get into it.

A. once　　　 B. when　　　 C. even though　　 D. before

18. ---where have you been all the morning?

---Oh, I _____ some old friends and I couldn’t leave until lunch time.

A. chat　　　 B. chatted　　　 C. have chatted　　 D. have been chatting

17. He at last became a student in Zhejiang University, _______ he had longed to be.

A. who　　　 B. that　　　 C. as　　　　 D. which

16. The reason why he didn’t turn up in time was ______ he missed the first bus.

A. why　　　 B. that　　　 C. because　　 D. how

15. ---How did you find the hotel when you were in Shanghai?

---In such a big city, it _______ worse.

A. couldn’t have been　 B. might not be　　 C. mustn’t have been　 D. couldn’t be

14. ---It’s raining hard outside!

---Yes. Since it has been dry for so long a time, the crops _____ grow better.

A. may　　　 B. could　　　 C. must　　　　 D. can