—Are you coming to Jeff’s party?—I’m not sure. I__________ go to the concert instead. 
#89067
A
must
B
would
C
should
D
might
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—I failed again. I wish I _________ harder.—But you _________.
#87572
A
had worked; hadn’t
B
worked; don’t
C
had worked; didn’t  
D
worked; didn’t
—Did you get a ticket then?—Yes,otherwise I _________ the concert last night. 
#86646
A
didn’t attend
B
wouldn’t attend
C
hadn’t attended
D
wouldn’t have attended