—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, trying to improve the situation .
#101218
A
worked
B
had worked
C
are working
D
had been working
推荐题目
And the horses _______up to the finish line. They’re neck and neck ... and neck all the way. Oh, the Italian horse Mamma Miu _______ the race!
#102891
A
come, is winning
B
have come, wins
C
are coming, won
D
are coming, wins
He said to us that he ____the teacher’s instructions.
#100425
A
must follow
B
followed
C
follow
D
must have followed
I fixed my eyes upon the newcomer, wondering whether I ________ him somewhere before．
#99984
A
saw
B
has seen
C
had seen
D
would see
You’d better not phone the manager between 7 and 8 tomorrow evening; he ________ an important meeting then.
#104744
A
will have
B
would have
C
will be having
D
will have had
---- You haven’t got the textbook for my chemistry course yet. ---- I know, and we _____ to get it for the last 5 weeks.
#104715
A
will have been trying
B
have been trying
C
will be trying
D
had tried