— It _______ be Jack who is in the office.— No, it _______ be him. I saw him off at the airport half an hour ago.
#89500
A
can’t ; can’t
B
must; can’t
C
must; mustn’t
D
may; mustn’t
推荐题目
 Thanks to my teacher's valuable help, otherwise I ________ my college entrance exam.
#86483
A
can't pass
B
hadn't passed
C
would not have passed
D
have not passed
----I thought you wouldn’t mind.----Well, as a matter of fact I don’t, but you _____ me first.
#89312
A
should ask
B
should have asked
C
must ask
D
must have asked
—Did you visit the famous cultural relics last month?—No, we____ it, but we spent too much time shopping.
#86854
A
could have visited
B
must have visited
C
can't have visited
D
shouldn't have visited