辽宁成人高考网 2021年成考高起点《英语》练习题及答案（18）
16. ______ the government argees to give extra money，the theatre will have to be closed next month.
A. Unless B. If
C. Since D As
17. To reduce weight，plastic has taken _______ of iron and steel in making boats.
A. its place B. place
C. the place D. a place
18.-Let me help you with your suitcase.
-________.
A. You're very nice
B. Yes，you're so helpful
C. No，I can do
D. It's very kind of you
19. These three English novels are for you. The rest _______ for the other students in your class.
A. were B. is
C. are D. was
20. You _______ have seen Jane in her office last Friday;she's been out of town for two weeks.
A. couldn't B. mustn‘t
C. wouldn't D. shouldn‘t
16. A 17. C 18. D 19. C 20. A
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