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 Theclassroomisverydirty.It      afterschool.A.mustclea...

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问题详情:

 Theclassroomisverydirty.It      afterschool.A.mustclea...

 The classroom is very dirty. It       after school.

A. must clean                  B. must be cleaned

C. will clean                  D. is cleaned

【回答】

B

知识点:动词语态

题型:选择题

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