—Have you finished the work?—Not yet. I to do it just a moment ago.A. set offB. set up C.

问题补充：

—Have you finished the work?

—Not yet. I to do it just a moment ago.

A. set off

B. set up

C. set out

D. set down

答案：

A. set off

B. set up

(答案→)C. set out

D. set down

解析：本题考察短语辨析。A出发，使爆炸；B创立；C着手，开始；D定居。句意：——你完成工作了吗？——还没有，我刚刚开始做它。