It was several minutes _______ we realized what was happening~our dog was trapped in a newly-dug tun...
2022-11-29 03:09:11 79次 2013-2014学年江苏省南京市高三第二次英语模拟试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was several minutes _______ we realized what was
happening~our dog was trapped in a newly-dug tunnel.
A. since B. before C.
until D. while
本题链接：
