His uncle went abroad in 2010, and _______since.
#63782
A
has not been heard of
B
had not been heard of
C
had not heard of
D
has not heard of
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It's said that they ________ a better life ever since they moved to the US.
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A
had enjoyed
B
have been enjoying
C
were enjoying
D
would enjoy
-- I have got a headache. -- No wonder. You_________ on the math exercises too long.
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A
work
B
are working
C
have been working
D
worked
Minister Bill De Blasio in office fewer than 48 hours when he came face to face with his biggest challenge in his life．
#63755
A
has been
B
had been
C
would be
D
is
— Alvin，are you coming with us?—I'd love to，but something unexpected ________.
#63769
A
has come up
B
was coming up
C
had come up
D
would come up
In the last few years thousands of films ____ all over the world.
#63784
A
have produced
B
have been produced
C
are producing
D
are being produced