首先,這個(gè)是并列舉and連接的,前后時(shí)態(tài)一致,即排除掉A和D
其次她是被要求的,因此用被動(dòng)語態(tài)就選C咯·
一般過去時(shí)的被動(dòng)語態(tài) was/were + done（動(dòng)詞過去分詞）
希望幫到你
I am sure Mary has been here and _.A.did what required her B.has done what required her C.has done what was required of
I am sure Mary has been here and _.A.did what required her B.has done what required her C.has done what was required of her D.did what has been required of her
為啥選C啊
為啥選C啊
英語人氣：733 ℃時(shí)間：2020-05-26 11:47:02
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