-----Did Mary come to the party?---I don’t know．She _____while I was out．
#87300
A
may have come
B
must have come
C
might come
D
could come
推荐题目
I was admitted into a famous university. My success______ me pleased with myself but I didn’t .
#86810
A
might have made
B
might make
C
should have made
D
should make
The fire spread through the hotel very quickly but everyone ____ get out .
#90350
A
had to
B
would
C
could
D
was able to
I told your friend how to get to the hotel， but I perhaps I __________ have driven her there.
#90457
A
could
B
must
C
might
D
should
— Shall I go and buy two more bottles of beer?— No, I’ve already bought twenty. That _____ be enough for us two.
#90448
A
can
B
may
C
ought to
D
might
If human beings had been a bit less greedy and cruel, more birds and animals _____dying out.
#89442
A
ought to avoid
B
could have been avoided
C
should have avoided
D
might have avoided