【題目】We have received an order that we _______ the lab for a couple of days.

A.mustn’t useB.not useC.can not useD.may not use

【答案】B

【解析】

考查虛擬語氣。句意:我們接到命令,幾天內不使用這個實驗室。如果是order/command/advice/suggestion等表示“命令/建議/要求”等名詞的同位語從句,則從句必須使用虛擬語氣,即從句的謂語動詞由“(should+ 動詞原形”構成,且should經(jīng)常被省略,所以是(shouldnot use。故選B項。

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