Question

31. All the task ______ ahead of time, they decided to go on holiday for a week.

A. had been finished             B. were finished     C. having been finished         D. been finished

Answer 1

C

解析:

31. C。考查独立主格结构。finish与主句的逻辑主语they没有关系，所以要在finish前加上其逻辑主语all the task，而且与之是被动关系，强调完成，因此可以用having been finished。