— Do you still remember when we went to Chongqing? —I can’t remember now but ______ sometime last summer?
#90411
A
could it be
B
might it be
C
could it have been
D
might it have been
推荐题目
Why didn't you tell me there was no meeting today? I all the way here through the heavy snow. 
#89417
A
needn't have driven
B
can't have driven
C
mustn't have driven
D
shouldn't have driven
If I _______ it, I would do it in a different way.
#88203
A
were to do
B
do
C
had done
D
was to do
. Mr. Green requires that the students ______ cheat in any exam.
#88188
A
should
B
don’t
C
wouldn’t
D
not
I really don’t know how to thank you , but for your help, I ______ my lost necklace.
#87790
A
couldn’t have found
B
mustn’t have found
C
couldn’t find
D
wouldn’t find