— The window must have taken you quite a lot of time that day. — Right. They____ for weeks.
#103071
A
haven’t been cleaned
B
hadn’t been cleaned
C
didn’t clean
D
haven’t cleaned
推荐题目
I haven’t seen Tom for several months. The last time I saw him, he ______ to find a job in London..
#103353
A
has tried
B
is trying
C
tries
D
was trying
Having failed to do what I ________ to，I’m afraid of being scolded by my parents.
#99443
A
am expected
B
will be expected
C
was expected
D
have expected
– I have got a headache. --No wonder. You ___in front of that computer too long.
#103775
A
work
B
are working
C
have been working
D
worked
Students taking the course _____to finish their homework with the help of computers．
#103877
A
are encouraged
B
have encouraged
C
are encouraging
D
had been encouraged
You __________ to leave until you __________ your work.
#102260
A
won’t be allowed; have finished
B
won’t allow; finish
C
won’t be allowed; will finish
D
won’t allow; will finish