Question

4. [2014 •安徽卷〗The twins, who   their homework, were allowed to play badminton on the playground.

A. will finish    B. finish

C. have finished   D. had finished

Answer 1

4.    D考查动词的时态。根据语境可知，完成作业是在were allowed之前发生的动作，属于"过去的过去"，应使用过去完成时。句意：已完成作业的双胞胎，被允许到操场上打羽毛球。故选D。