Beforeyouswitchoffthecomputer,youmust

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问题详情:

Beforeyouswitchoffthecomputer,youmust

Before you switch off the computer,you must______the document.

A.keep                     B.save                       C.stay                      D.hold

【回答】

 解析:save the document意为“保存文档”。

*:B

知识点:动词和动词短语

题型:选择题

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