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
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
The world's first flying car has been ________ for sale at ￡800,000 by Courtesy Aircraft of the US.
#63765
A
taken up
B
put up
C
pulled up
D
made up
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
With the rapid growth of population, the city _____ in all directions in the past five years.
#63791
A
spreads
B
has spread
C
spread
D
had spread