Sometimes we have much homework to do, but not often. Anyway, it in time.
A. can finish
B. should finish
C. can be finished
D. should be finished
网友回答
A. can finish
B. should finish
C. can be finished
(答案→)D. should be finished
解析：考查语态。含有情态动词的被动语态结构是情态动词+be +动词的过去分词。故选D。