There was something wrong with the network，or the e-mail____ earlier. A. could have been sent B. mig...
2022-12-07 23:51:27 112次 2014届北京大学附属中学河南分校高三第一次月考英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There was something wrong with the network，or the e-mail____ earlier.
A. could have been sent
B. might be sent
C. need have been sent
D. must be sent
本题链接：
