A. | don't know | B. | know | C. | knew | D. | didn't know |
分析 莉莉病了在医院,真的?我不知道她病了.
解答 答案:D.结合really?可知不知道莉莉病了,故用否定句,结合句意表达的是过去的事情故用一般过去时,故借助于did构成否定,故答案是D.
点评 简单句中含有系动词be、情态动词和助动词时,变否定句时需在系动词be、情态动词和助动词后加not.如:I am a teacher.→I am not a teacher.
He can help me.→?He can't help me.
简单句中谓语动词为行为动词时,要根据时态选用do的相应形式,把肯定句变为否定句.如:
The little girl wants to go there.?→The little girl doesn't want to go there.
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A. | what | B. | that | C. | where | D. | who |
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