A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station.
#89346
A
should
B
can
C
must
D
will
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You didn’t let me drive. If we ______ in turn, you ______ so tired.
#87358
A
drove…didn’t get
B
had driven…wouldn’t have got
C
drove…wouldn’t get
D
were driving…wouldn’t get
They must have been here the day before yesterday,____? 
#89896
A
mustn’t they
B
didn’t they
C
mustn’t have they
D
had they
--Why are you so depressed, Lily? --- I lost the contest narrowly, or I _________ the award of $10,000.
#87033
A
had gained
B
would have gained
C
would gain
D
must have gained
Thank you for giving me so much help. I _______in the experiment without your support.
#87039
A
have failed
B
will fail
C
would have failed
D
must have failed