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英语
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We have to get enough clean water.We ______get enough clean water.(用must改写)
人气:300 ℃ 时间:2019-10-08 04:58:23
解答
we must get enough clean water.
【must=have to】但是must不能有时态变化的形式,但是都表示 必须,must有客观上的义务,have to 有主观的不得不.
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