问题

We have four classes ______ the morning.
A:of
B:at
C:on
D:In;
B:at
C:on
D:In;
正确答案是:
同类题型
He told me that by the end of this year they______together for twenty years.
We’d better invite Jim and Jack to the party tonight.—Yes, _____ I’ll give them a call right now.
We can go to Jinan Railway Station by bus.— Why not _______ there for a change
Do you know what Lily is doing?— She _______ in the office by a reporter from WWF