—Have you finished your homework yet?
—Not yet, I to do it just a few minutes ago.
A. get down
B. set out
C. set about
D. set up
网友回答
A. get down
(答案→)B. set out
C. set about
D. set up
解析：get down to doing sth 开始做某事，set out to do sth 着手做某事，set about doing sth 开始做某事，set up 建立。故选B。