—Why did you cancel your trip to the New
题型:选择题
问题:
—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
—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