Kate ________ on her new novel, which is supposed to come out next month.
#63761
A
was working
B
had worked
C
will be working
D
has been working
推荐题目
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
I wonder why Jenny ____ us recently. We should have heard from her by now.
#63792
A
hasn’t written
B
doesn’t write
C
won’t write
D
hadn’t written
I have to see the doctor because I ________ a lot lately.
#63773
A
have been coughing
B
had coughed
C
coughed
D
cough
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
Barrack Obama __________ President of the United States since 2010.
#63757
A
became a
B
has become a
C
has turned
D
has been