——Is there any possible way to help them get rid of such a bad habit? ——To tell the truth, it’s very hard. But we_______ on this problem.
#103283
A
worked
B
had worked
C
are working
D
had been working
推荐题目
With the development of science and technology, people’s life _______ in the past few years.
#104987
A
improved
B
has improved
C
is improving
D
had improved
A poet and artist _____ coming to speak to us about Chinese literature and painting tomorrow afternoon.
#101112
A
is
B
are
C
was
D
were
This kind of glasses made by experienced craftsmen _________ comfortably.
#102675
A
is worn
B
wears
C
wearing
D
are worn
My plane at 8:30 am, so I _______ home at 8:00 tomorrow morning.
#101636
A
leaves; leave
B
leaves; am leaving
C
is leaving; am leaving
D
is leaving; leave
—Yang yan, are you coming with us? —I’d love to, but something unexpected ______.
#101324
A
was coming up
B
had come up
C
would come up
D
has come up