问题补充：
He said he his work, and then we needed to wait for him for a little while.
A. just finished
B. was just finishing
C. had just finished
D. was just finished
答案：
A. just finished
(答案→)B. was just finishing
C. had just finished
D. was just finished
解析：考查时态：句意：他说他快要完成工作了，我们需要等他一会。从we needed to wait for him for a little while.可知他将要完成工作，主句是said，从句用过去将来时，选B。
