--Lookatthatman.He________MrWang.--No.He________MrWang.HehasgonetoB

发布时间：2020-08-04 11:28:45

--Look at that man. He ________ Mr Wang.--No. He ________ Mr Wang. He has gone to Beijing.A.must be, mustn't beB.must be, can't beC.can be, can't beD.can be, mustn't be

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B解析must be含有肯定推测，而其否定句用can't be。
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