题目内容

【题目】I don’t know _________ . Can you help me?

A. how to do it. B. how to do. C. what to do it.

【答案】A

【解析】句意：我不知道如何做它。你能帮助我吗？作动词know的宾语，用疑问词+to do，what充当动词的宾语，故C项中的it是多于的。how作为状语，后面do有宾语，故排除B项。故选A。

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