—Why did you cancel your trip to the New York? —We were just about to leave it started to

发布时间：2020-08-16 10:30:47


—Why did you cancel your trip to the New York?
—We were just about to leave     it started to snow．
A. when
B. before
C. after
D. since

网友回答

(答案→)A. when
B. before
C. after
D. since
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