(2014年北京市西城区高三5月二模试题)21. — You look great!— I ______ out. Check out my muscles!
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A
will work
B
was working
C
have been working
D
had been working
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 Thank you for       me find my little cat yesterday.
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A
help
B
helps
C
helped
D
helping
The gasoline _______. Let’s fill the car up at the next gas station.
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A
is running out
B
has run out
C
is being run out
D
has been run out
Ted ______ for two months in London last year to receive his yearly training.
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A
stayed
B
has stayed
C
had stayed
D
would stay