Question

Two thirds of the work in our office ______ by the computer last year.

1. A.
   are done
2. B.
   is done
3. C.
   were done
4. D.
   was done

Answer 1

D
本题考查了分数的用法及一般过去时的被动语态。分数做主语，谓语动词的单复数取决于它后面的名词，work 为不可数名词，谓语应用单数形式，排除A、C；last year 为一般过去时态的时间状语，排除B，故答案为D。