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[单选题]
I would have come sooner but I ______ that you were waiting.
A.haven’t known
B.hadn’t known
C.didn’t know
D.have known
提问人:网友lixin080108
发布时间:2022-01-07
A.haven’t known
B.hadn’t known
C.didn’t know
D.have known
B、didn't know
C、hadn't known
D、don't know
A、don't know
B、hasn't known
C、didn't know
D、haven't known
-- _____.
A. No, you can't
B. Yes, sir, single or return?
C. We are busy.
D. Wait
B.低电压
C.静电电压
D.悬浮电位
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