Question

【题目】 He has worked in the city _______ three years ago while his wife has been here______only one month.

A. since ， for B. since， since

C. for， since D. for， since

Answer 1

【答案】A

【解析】

试题分析：句意：他自从3年前就在这个城市工作，而他的妻子在这仅仅有一个月。For后面跟时间段，since后面跟时间点。故选A。