Mybikeisbroken.Idon’tknow_____

发布时间:2020-07-27 17:50:39

My bike is broken.I don’t know ________.A.what to do itB.how to doC.what to doD.who to do

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C解析What to do 等于What I should do, What作to do逻辑上的宾语。
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