They do homework after school.怎么改成否定句和一般疑问句?
题目
They do homework after school.怎么改成否定句和一般疑问句?
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答案
句子中没有be动词和情态动词所以要用助动词 do
They don't do homework after school.
疑问句要把助动词放句首
Do they do homework after school?
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