25.You mustn't_____ until he comes back.A.be away B.leave C.be left

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25.You mustn't_____ until he comes back.A.be away B.leave C.be left

答案：B
leave 表示“离开”,强调动作,be away 表示：不在,离开,强调状态.
翻译：在他回来之前,你不能离开.