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
——Will you come to my office when you      your work?  ——Sure. 
#103289
A
finished
B
are finishing
C
have finished
D
will finish
– Your job ________ open for your return.– Thanks.
#104588
A
will be kept
B
will keep
C
had kept
D
had been kept