We are living in an age many things are done on computer. A. whichB. thatC. whoseD. when

问题补充：

We are living in an age many things are done on computer.

A. which

B. that

C. whose

D. when

答案：

A. which

B. that

C. whose

D. when

解析：先行词是表时间的 age(时代)，由于关系词在定语从句中作状语，故用 when。