They _____ on the program for almost one week before I joined them, and now, we ____on it as no good results have come out so far.
#100667
A
had been working; are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working
推荐题目
Since the time humankind started gardening, we _____to make our environment more beautiful.
#99086
A
try
B
have been trying
C
are trying
D
will try
If nothing ________, the oceans will turn into fish deserts.
#100592
A
does
B
had been done
C
will do
D
is done
My sister ________ for long when she fell seriously ill.
#100024
A
didn’t marry
B
has been married
C
hadn’t been married
D
wasn’t married
Don’t telephone me at 8 a.m. tomorrow — I ________ a meeting.
#102183
A
am having
B
will be having
C
am about to have
D
have had
All the work ______ ,and we are going to leave..
#103928
A
complete
B
completing
C
have completed
D
has been completed