Davidhadacoldyesterday.改成否定句.david()()acoldyesterday.
2022-05-04 31次 反馈错误 加入收藏 正确率 : 100%
题目内容：
David had a cold yesterday.改成否定句.david()()a cold yesterday.
优质解答
由had和yesterday得知体现一般过去时,故借助组动词did
David didn't have a cold yesterday.(did已经体现一般过去时,故had还原为原形have)
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