问题题干答案解析相关问题热门问题最新问题

问题详情

Mary has been a secretary in this company ______she graduated from Beijing University.

A、since

B、when

C、before

时间：2021-09-02 11:36 关键词：国家开放大学管理英语

答案解析

A

相关问题

Linda has never worked in radio or television before.
The central problem of translating has always been whether to translate literally or freely.(语法上正确与否)
_________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.
Mary has been a secretary in this company ______she graduated from Beijing University.
______ it or not ,his discovery has created a stir in scientific circles