The police still haven’t found her, but they’re doing all they _____. 
#89561
A
may
B
can
C
must
D
will
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________ I be free tomorrow, I would go with you.
#86549
A
Could
B
Should
C
Might
D
Must
 My suggestion is that a plan for study ____ at first.
#88022
A
will be made
B
be made
C
was made
D
be should made
We were anxious about you.You    home without    us.
#86951
A
shouldn’t leave; tell
B
mustn’t leave; tell
C
shouldn’t have left; telling
D
can’t have left; telling