题目内容

4．-Why ______ there doing nothing when you can lend me a hand，Michael？
-Sorry，Mom．（　　）
A．to standB．standingC．standD．what

分析 ---Michael，你能帮我一把，为何站在那不动？
---抱歉，妈妈．

解答 答案：C
分析句子结构可知，"when you can lend me a hand，Michael"是when引导的时间状语从句，所以"Why ______ there doing nothing"为主句．其中缺少谓语动词，故用stand．

点评 考查谓语，考生需对句子结构进行分析，找出缺少成分，再判断哪些形式可以做谓语．

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