A. | don't know | B. | know | C. | knew | D. | didn't know |
分析 莉莉病了在醫院,真的?我不知道她病了.
解答 答案:D.結合really?可知不知道莉莉病了,故用否定句,結合句意表達的是過去的事情故用一般過去時,故借助于did構成否定,故答案是D.
點評 簡單句中含有系動詞be、情態動詞和助動詞時,變否定句時需在系動詞be、情態動詞和助動詞后加not.如:I am a teacher.→I am not a teacher.
He can help me.→?He can't help me.
簡單句中謂語動詞為行為動詞時,要根據時態選用do的相應形式,把肯定句變為否定句.如:
The little girl wants to go there.?→The little girl doesn't want to go there.
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