2. 外语
  3. I assume the construction of the new airport ______ at the end of last year.

I assume the construction of the new airport ______ at the end of last year.

admin2011-01-03  58
问题 I assume the construction of the new airport ______ at the end of last year.
选项 A、must complete
B、must be completed
C、must have been completed
D、must have completed
答案C
解析 我想新机场的建设肯定是去年年底完成的。本题考查情态动词must表示推测的用法，意为“肯定，必定，非常可能”，根据时间标志at the end of last year，本题中must是对过去的情况的推测，后跟have done；又因 complete与construction构成动宾关系，故用被动形式have been done。
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大学英语四级

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