It was quite a long time ______ he really realized the serious situation. A．since B．when C．after D．b...
2023-01-08 11:55:51 138次 江苏省2009-2010学年度高一下学期期中考试试题（英语） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was quite a long time ______ he really
realized the serious situation.
|
A．since
|
B．when
|
C．after
|
D．before
|
本题链接：
