问题
选择题
—How long did the meeting last this afternoon?
—It was supper time _________ the meeting was over.
A．that
B．at which
C．when
D．until
答案
答案：C
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—How long did the meeting last this afternoon?
—It was supper time _________ the meeting was over.
A．that
B．at which
C．when
D．until
答案：C