秀山广东专升本高等数学如何复习
很多考生在高数这个科目上比较薄弱，甚至连复习起来都不知道如何下手。今天昇学小编给大家简答的说一说广东专升本高等数学如何复习，考生可以参考。 循序渐进，抓基础。 数学是比较重视基础的学科，所以抓...
Directions: There are 40 incomplete sentences in this part. For each
sentence there are four choices marked A, B, C and D. Choose the ONE answer that
best completes the sentences, and then write the choice on the Answer Sheet
21. Mr. Jackson devoted himself teaching in the primary school.
A. to B. for C. by D. as
22. Mary is ill today. If she _____, she ____ absent from school.
A. were not ill, wouldn't be B. had been ill, wouldn't have been
C. had been ill, should have been D. hadn't been ill, could be
23. The sun sank the horizon and it was getting dark.
A. over B. under C. on D. below
24. My sister advised me that I ________ accept the invitation.
A. could B. must C. should D. might
25. The discovery of these tombs is ________ for scholars’ studying Chinese history.
A. of very important B. great significant C. of great significance D. greatly importance
26. By no means _______to move to a new place far away from her workplace， because it isn't convenient for her family and herself.
A. Jane will agree B. will Jane agree C. Jane will disagree D. will Jane disagree
27. They never have chicken, ___ ?
A. are they B. do they C. aren't they D. don’t they
28. None of us expected Tom to __________in the library. We thought he was absent from the school.
A. turn in B. turn over C. turn up D. turn down
29. I want to buy a new hat to __________ this green T-shirt.
A. go into B. go with C. go after D. go by
30. He changed his name, _____ that nobody would find out what he had done before.
A. having thought B. to think C. thinks D. thinking
参考答案：
21>25 AADCC 26>30 BBCBD
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