17. They must have been enjoying themselves there, otherwise they _______ so long.

　 A. can’t have stayed　　　　　　 B. wouldn’t have stayed

　 C. needn’t have stayed　　　　　 D. couldn’t stay

16. His ______ expression suggested that he _________ .

　 A. puzzling，puzzled　　　　　 B. puzzling, was puzzled　

C. puzzled, was puzzling　　　　 D. puzzled, was puzzled

15. Seeing his men _______ with weapons and ammunition, the officer smiled with satisfaction.

　 　　A. well equipped　 　B. well equipping　 C. are equipped　 　D. were equipping

14.What do you imagine ________to her?

　　 　A. happening　　　 B. having happened　 　C. has happened　 D. to have happen

13. The instrument as well as other spare parts __　　　　 going to be airlifted soon.

　 A. is　　　　　　　　 13, are　　　　　　　 C. be　　　　　　　 D. will

12. Mr. Green 　_____them to come here early.

　 A. wished for　　 B. suggested　　　 C. ordered　　 D. hoped

11. The sign reads “ In case of ___ fire, break the glass and push ____ red button.”.

　 A. / ; a　　　　　　 B. / ; the　　　　　　 C. the ; the　　　　　 D. a ; a

10. --- Have you learned English before?

　 --- Yes, I _________ English for 4 years in Shanghai.

　 A. learn　　　　　 B. learned　　　　　　 C. am learning　　　 D. have learned

9. The Smiths have three sons, one a baby, _______ twins of thirteen.

　 A. another　　　　　 B. other　　　　　　 C. the other　　　　　 D. the others

8. The festival, ______ as Carnival, is one of the world’s most famous and attracts visitors from all over the world.

　 A. knowing　　　　 B. known　　　　　 C. being known　　　 D. to be known