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The conference a full week by the time it ends. A. must have lasted B. will have

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The conference a full week by the time it ends. A. must have lasted B. will have

Theconference ________ a full week by the time it ends.

A.must have lasted   B.will have lasted

C.would last D.has lasted

 

试题答案

答案:B

提示:

会议将会持续一整个星期。