By the time you arrive in London,we __in Europe for two weeks.
A.shall stay B.will have stayed C.have stayed D.have been staying
人气：412 ℃ 时间：2019-08-21 18:59:27
解答
B.By the time 相当与连词,引导的从句用一般的时态
主句用完成时,(从句用一般过去时,主句就用过去完成时;从句用一般现在
时,主句就用现在完成时)
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