There is no point making complaint of getting low-paid you don’t make any effort at all.

问题补充：

There is no point making complaint of getting low-paid you don’t make any effort at all.

A. until

B. when

C. once

D. though

答案：

A. until

(答案→)B. when

C. once

D. though

解析：

试题分析: A. until 直到B. when 当…时候C. once 一旦D. though尽管；句意：当你根本没有做出什么努力时，还抱怨低收入是毫无道理的。故选B

考点:连词