By the end of last week nearly 80 percent of the work .A. have finishedB. had been finish

问题补充：

By the end of last week, nearly 80 percent of the work .

A. have finished

B. had been finished

C. will be finished

D. was finished

答案：

A. have finished

(答案→)B. had been finished

C. will be finished

D. was finished

解析：句意：到上个星期为止，几乎80%的工作都已经被完成。因为work和finish是被动关系，所以排除A，又因为时间状语是By the end of last week,所以和过去完成时连用，选B。