— 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
The whole family were sound asleep when the disaster_____.
#100787
A
had taken place
B
took place
C
is taking place
D
has taken place
His novels sell best and have made him famous, but before that no one could have imagined how great a role he ______ in the literary world．
#100258
A
had played
B
has played
C
is playing
D
was to play
We on it for several hours but we haven't yet reached any conclusion.
#99883
A
are working
B
work
C
have been worked
D
have been working
(2013·高考北京卷)—So what is the procedure?—All the applicants________before a final decision is made by the authority.
#99689
A
interview
B
are interviewing
C
are interviewed
D
are being interviewed
No conclusion _________ about the new product until the result of the experiment has been announced.
#99807
A
is drawn
B
was drawn
C
will be drawn
D
has been drawn