They _________ on the program for almost one week before I joined them, and now we are still working on it as no good results have come out so far.
#103812
A
have worked
B
had worked
C
have been working
D
had been working
推荐题目
I decided to go to the library as soon as I ______.
#104128
A
finished what I was doing
B
finished what I did
C
would finish what I was doing
D
finish what I did
The harder you ________， the better progress you ________.
#101145
A
will work; will make
B
work; have made
C
work; will make
D
will work; make
Because the shop_____, all the T-shirts are sold at half price.
#101814
A
has closed down
B
closed down
C
is closing down
D
had closed down
---Your suit ! Why? ---I got stuck in the rain．
#99025
A
has ruined
B
had ruined
C
has been ruined
D
had been ruined
Mike didn’t notice Alice entering his room. He ____ a phone call.
#104835
A
answered
B
has answered
C
was answering
D
is answering