The math problem is so hard. I really don’t know .A. what to do it B. how to doC. how to do it D. what do it 题目和参考答案——青夏教育精英家教网—

题目内容

The math problem is so hard. I really don’t know _____.

A. what to do it B. how to do

C. how to do it D. what do it

【解析】

试题分析：考查what和how接动词不定式的使用。what是代词，在作疑问词时，表示“什么”，在句中作do的宾语；how是副词，在做疑问词是表示“怎样”，在句中通常作状语。what和how接动词不定式时，通常是：what to do 和 how to do it。句意：这个数学问题太难了，我真的不知道怎么做。故选C。

考点：考查what和how接动词不定式的使用

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(3) Show your parents you are growing up. 5.

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