23. I thought there would be many students in the playground, bust when I got there, I found___.

　　 A. none　　　　　　 B. no one　　　　　　　 C. nobody　　　　　　 D. nothing

22. Can you finish it in an hour? ____.

　　 A. I’m sure so　　　　　 B. I’m afraid not　　　　　 C. I wish so　　　　　 D. I don’t hope so

21. Are you satisfied with the result? Not at all. It could be ____.

　　 A. so bad　　　　　 B. any worse　　　　　 C. much better 　　　　　　 D. the best

20. We’re considering ___ our old classmates ____ to our house.

　　 A. to invite; coming　 B. to invite; to come　　　 C. inviting; to come　　　 D. inviting; coming

19. The war and the suffering ____ caused affected him greatly.

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

18. ____ the new word, he consulted the dictionary.

　　 A. Not learning　　　　 B. Having not learned　　　　　 C. Not learned　　　　　　　 D. Not having learned

17. We were just about to go to bed ____ the electricity is out .

　　 A. when 　　　　　 B. which　　　　 C. as　　　　　　　 D. then

16. The school boys and girls are crossing the street, _____ a small yellow cap.

　　 A. each of them has 　　　　 B. they each have　　　　　 C. everyone has　　　　　　 D. each wearing

15. The experiment __ on the moon in July, 1971 proved that Galileo’s theory of falling objects __ true.　　　 A. was done; is B. being done; was　 C. done; is　　　 D. having been done; was

14. ____? All right. Let’s met at the usual place.

A. Would seven thirty be all right for you　　

B. Would you like to know where we will meet

C. Would you let me know when we well meet　　

D. Would you mind our meeting at the usual place