—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
一I’m sorry! I would have taken him to hospital if I had known he was seriously ill.一But ______ .
#99985
A
you didn’t
B
you hadn’t
C
he wasn’t
D
you aren’t
---When ______ and visit our exhibition next month ?-- -When _______ , I will let you know .
#104621
A
will he come ; he will come
B
will he come ; he comes
C
does he come ; he will come
D
does he come ; he comes
Dr. Smith, together with his wife and daughters, visit Beijing this summer.
#101088
A
is going to
B
are going to
C
was going to
D
were going to
—What a pity! You should have urged him to hand in his English homework.—I _______. But he wouldn’t listen to me.
#104233
A
have done
B
did
C
had done
D
do