The teacher demanded that the exam _____ before eleven. 
#86451
A
must finish
B
be finished
C
would be finished
D
must be finished
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--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ____ this time.
#89035
A
should be more careful
B
could be more careful
C
should have been more careful
D
must have been more carefully
 ---- There’s no light on.   ---- They ________ be at home.
#87559
A
can’t
B
mustn’t
C
needn’t
D
oughtn’t to
We __________ our lives had it not been for the policeman.
#87961
A
would have lost
B
should lose
C
might lose
D
could have lost