Question

【题目】I think you should complain, , of course, you are happy with the situation.

A. unless B. however C. until D. though

Answer 1

【答案】A

【解析】句意：我认为你应该抱怨，当然，除非你对这种情况感到满意。A. unless除非； B. however然而；C. until直到；D. though尽管。对这种情况感到满意是不抱怨的条件。故选A。