who ______it?Grandfather did.A/buy b/was bought c/bought d/did buy我选择了b为什么错?

题目

who ______it?Grandfather did.A/buy b/was bought c/bought d/did buy我选择了b为什么错?

答案

b是一个被动语态,你不可能说“谁被买了它”,对吧.这里应选C
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