It is required that no smoking ______ in the school.
#89784
A
was allowed
B
be allowed
C
would be allowed
D
had been allowed
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They urged that measures _______ immediately to protect the endangered animals.
#87884
A
should take
B
must be taken
C
would take
D
be taken
Thanks to my teacher's valuable help, otherwise I ________ my college entrance exam.
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A
can't pass
B
hadn't passed
C
would not have passed
D
have not passed
The boss____________ the worker how to do it, or the accident couldn't have happened.
#89996
A
can't have told
B
ought to tell
C
could have told
D
mustn't have told
. ----You just think of yourself! You kept me waiting for at least three hours．----I am sorry that you _____ think so.
#88461
A
would
B
might
C
could
D
should
I can’t find the recorder in the room. It ________ by someone.
#87740
A
may take
B
may have been taken away
C
must have taken away
D
needn’t have been taken away