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英语
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-Mr Wu must have been to your house yesterday morning.-No,he___.Because he didn't know my address.
could't?can't?哪个？
人气：187 ℃ 时间：2020-04-15 07:42:35
解答
could't根据前文提到的yesterday知道时态是过去时,还可以根据后面的回答didn'判断出时态是过去时.因此用could not.
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