Wearen'tallowed________inaloudvoice

发布时间：2020-07-25 22:18:26

We aren't allowed________in a loud voice in the library．A.speakingB.speakC.to speakingD.to speak

网友回答

D解析分析：allow sb to do sth(允许某人做某事)，此处allow用了被动语态。
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