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—Howlonghaveyoubeenhere?—theendoflastmonth,A.InB.ByC.AtD.Since

题目详情
— How long have you been here?
— ______ the end of last month,
A.In B.By C.At D.Since
▼优质解答
答案和解析
D

since引导的介词短语和现在完成时连用