—Could I use your computer Susan? —Sorry I’m going to it now. You can use it tomorrow.A

问题补充：

—Could I use your computer, Susan?

—Sorry, I’m going to it now. You can use it tomorrow.

A. work out

B. work in

C. work on

D. work for

答案：

A. work out

B. work in

(答案→)C. work on

D. work for

解析：

A. work out 表示算出；解决。B. work in在哪工作C. work on致力于；从事于；利用......做事。D. work for为......工作。故答案为：C