Jack is a great talker.   It’s high time that he              something instead of just talking.
#87419
A
will do
B
has done
C
do
D
did
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I was really anxious about you.You ________ home without a word.
#86628
A
mustn't leave
B
shouldn't have left
C
couldn't have left
D
needn't leave
If people ______virtual reality holidays, we ______ on an around-the-world tour.
#87555
A
invent; go
B
invented; had gone
C
invent; have gone
D
invented; would go
I can''t think he ____ tell me a lie . 
#89759
A
might
B
could
C
would
D
should
— 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