The workers demanded that their employer_____ their working conditions. 
#86737
A
had improved
B
would improve
C
improve
D
will improve
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We __________ booked. Look, this restaurant is almost empty.
#87437
A
mustn’t have
B
can’t have
C
should have
D
needn’t have
 I insisted that he_______ at once.
#88345
A
leave
B
left
C
leaves
D
leaving
He spoke as though he________ anything of the world. --Really?
#86457
A
knew
B
had known
C
knows
D
has know
It is essential that these application forms ______ back as early as possible.
#87599
A
must be sent
B
will be sent
C
are sent
D
be sent