Mr. Blake __________my letter, otherwise he would have replied by now.
#87901
A
will not have received
B
needn’t have received
C
shouldn’t have received
D
couldn’t have received
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If it   for your help,we would be in serious trouble.
#88964
A
isn’t
B
aren’t
C
hasn’t been
D
weren’t
If they       what I was saying, they'd know what I was talking about
#86853
A
took the trouble to listen to
B
had trouble listening to
C
take the trouble to listen to
D
have trouble listening to