While watching television, ________.
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A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
推荐题目
The project, ________ in 2009, has expanded the city’s cellphone network to cover one million users.
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A
accomplished
B
being accomplished
C
to be accomplished
D
having accomplished
(2013·皖南八校二联)It is necessary that we keep the young generation ________ of the current affairs.
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A
informed
B
being informed
C
informing
D
to inform
—I can’t stand him ________ all the time. —Is that why you refused ________ to him?
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A
interrupting; speaking
B
interrupting; to speak
C
to interrupt; to speak
D
to interrupt; speaking
My boss command me ____ the same mistake again or I would be fired.
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A
not to make
B
not make
C
don’t make
D
to not make