问题

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

正确答案是：

同类题型

I thought she was famous, but none of my friends have ______heard of her

1—How much are the________—Eight Yuan akilo.

It’s hard for people to make their way________

Why not__________ your new ideas? Otherwise you will never know whether they are possible or not. [ ]

. —Call me at 9:00. I can’t afford tomiss such a conference.—Don’t worry. I’ll surely_____ you.