---Sorry, Professor Smith. I didn't finish the assignment yesterday.---Oh, you      have done it as yesterday was the deadline.
#87069
A
must
B
mustn't
C
should
D
shouldn't
推荐题目
I can’t accept the order he gave yesterday that I _____in my own study!
#87684
A
couldn’t be
B
not be
C
mustn’t be
D
wasn’t
Daniel’s family ________ their holiday in Huangshan this time next week.
#88208
A
are enjoying
B
are to enjoy
C
will enjoy
D
will be enjoying
 We      the postcards yesterday, but it didn’t arrive.
#87363
A
should receive
B
ought to receive
C
ought to have received
D
must have received