— Do you still remember when we went to Nanjing? — I can't remember now but ________sometime last summer?
#89645
A
might it be
B
could it be
C
could it have been
D
should it have been
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What a pity! I ______in Hainan two more days，but something urgent needed to be dealt with back home.
#89437
A
must have stayed
B
needn't have stayed
C
may have stayed
D
could have stayed
—Do you know where David is? I couldn’t find him anywhere.—Well. He _________have gone far—his coat’s still here.
#89252
A
shouldn’t
B
mustn’t
C
can’t
D
wouldn’t
---“Why do you have to be there at six?”---“The teacher demands that everyone _____in his seat at six.”
#86880
A
would be
B
can be
C
be
D
will be
The man in prison insisted that he _______ nothing wrong and _______ set free.
#88178
A
should do, should be
B
had done, should be
C
had done, had been
D
should do, had been