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英语
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Ann returned the book to the library yesterday.改为一般疑问句后return要加s吗?
人气:276 ℃ 时间:2019-10-25 06:22:14
解答
Did Ann return the book to the library yesterday?
不需要哦~因为does do did这类助动词后面都用原型哦~这里是过去所以用did
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