Don’ t be joking. It’ s time toyour business.A. set outB. take upC. go onD. get down

问题补充：

Don’ t be joking. It’ s time toyour business.

A. set out

B. take up

C. go on

D. get down

答案：

(答案→)A. set out

B. take up

C. go on

D. get down

解析：考查词组辨析。set out出发；开始；take up从事；吸收；go on继续；get down下来；写下。句意：不用开玩笑了，是该你开始工作的时候了。