Teenagers should_____________ drive. They’re not serious enough.
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A
allowed to
B
be allowed to
C
allow to
D
not be allowed to
推荐题目
 This movie ________ on the Internet.
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A
watch
B
watches
C
can watch
D
can be watched
The murderer ________ only days after the young man was found ________. 
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A
caught; died
B
was caught; died
C
caught; dead
D
was caught; dead
—Oh, this is really an old building.—Do you know when it        ?
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A
has built
B
is built
C
was built
D
will be built