单项选择题

—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

<上一题目录下一题>

热门试题

单项选择题None of the books and magazines can be ______ from the reading room.

单项选择题______ is to be decided by himself.