问题标题:
IamsureMaryhasbeenhereand_.A.didwhatrequiredherB.hasdonewhatrequiredherC.hasdonewhatwasrequiredofherD.didwhathasbeenrequiredofher为啥选C啊
问题描述:
IamsureMaryhasbeenhereand_.A.didwhatrequiredherB.hasdonewhatrequiredherC.hasdonewhatwasrequiredofherD.didwhathasbeenrequiredofher
为啥选C啊
黄小毛回答:
首先,这个是并列举and连接的,前后时态一致,即排除掉A和D
其次她是被要求的,因此用被动语态就选C咯·
一般过去时的被动语态was/were+done(动词过去分词)
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