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
推荐题目
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
It's said that they ________ a better life ever since they moved to the US.
#63764
A
had enjoyed
B
have been enjoying
C
were enjoying
D
would enjoy
Tom ________ in the library every night over the last three months.(2011·北京)
#63775
A
works
B
worked
C
has been working
D
had been working
Up to now, our society ________ with limited living space and a shortage of natural resources.
#63760
A
has been challenged
B
is being challenged
C
is challenging
D
has challenged
—Why，Jack，you look so tired!—Well，I ________ the house and I must finish the work tomorrow.
#63774
A
was painting
B
will be painting
C
have painted
D
have been painting