The task in an hour. Then we can go home and have a good rest.
A. was finished
B. will be finished
C. has been finished
D. can’t finish
网友回答
A. was finished
(答案→)B. will be finished
C. has been finished
D. can’t finish
解析：考查时态与被动语态。task与finish是动宾关系，表被动，应该使用被动语态，排除D；in an hour一小时之内，in+一段时间与将来时连用，排除A、C；故选B。