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Hello!IyouinLondon.Howlonghaveyoubeenhere?A.don'tknow;wereB.hadn'tknow;areC.haven'tknown;areD.didn'tknow;were
题目详情
Hello!I ____you____in London.How long have you been here?
A.don't know;were
B.hadn't know; are
C.haven't known;are
D.didn't know;were
A.don't know;were
B.hadn't know; are
C.haven't known;are
D.didn't know;were
▼优质解答
答案和解析
D.didn't know;were
指之前不知道,现在当然知道了
后面were是要与did保持一致
指之前不知道,现在当然知道了
后面were是要与did保持一致
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