Mr. Brown, a good friend of mine, __________ us but that he was short of money at the time.
#89710
A
would help
B
would have helped
C
had helped
D
helped
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It is very important that you _______ for this examination.
#87091
A
would get yourself prepared
B
must get yourself preparing
C
should get yourself prepare
D
could get yourself prepared
 It is required in our school that lights in students’ rooms ______ off by 11o’clock.
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A
be switched
B
would switch
C
should switch
D
must be switched