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He cut a piece of bread before lunch.(改为否定句) He ()()a piece of bread before lunch.
人气:111 ℃ 时间:2020-04-15 15:59:09
解答
He didn't cut a piede of bread before lunch.
before lunch在午餐前,所以要用一般过去式.一般遇到有before的,都用一般过去式.
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