—What would you wish to do if you were a college student again? —That's very hard to say, but I wish I___________ when I was a college student.
#89321
A
has not studied biology
B
did study biology
C
had studied biology
D
studied biology
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How I wish I _____ the army then. I would have become a soldier.
#86464
A
attended
B
had attended
C
would have attended
D
have attended
—Why aren’t they here yet?—They           the bus.
#88998
A
can have missed
B
must be late for
C
may have missed
D
might be late for
—I’m sorry. I ___________ at you yesterday.— Forget it. I was also a bit out of control myself then. 
#88114
A
shouldn’t shout
B
mustn’t shout
C
shouldn’t have shouted
D
mustn’t have shouted