Tom ________ in the library every night over the last three months.(2011·北京)
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A
works
B
worked
C
has been working
D
had been working
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The house is dirty because it ________ since they moved out.
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A
doesn't clean
B
isn't cleaned
C
hasn't cleaned
D
hasn't been cleaned
In the last few years thousands of films ________ all over the world.
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A
have produced
B
have been produced
C
are producing
D
are being produced
His uncle went abroad in 2010, and _______since.
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A
has not been heard of
B
had not been heard of
C
had not heard of
D
has not heard of
He complained that this was the third time he of the changes of the meeting date.
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A
would be informed
B
was informed
C
has been informed
D
has been informed
The final examination is coming up soon. It’s time for us to ________ our studies.
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A
get down to
B
get out
C
get back for
D
get over