企源知识库

Since he left the university, he _______ in an accounting company.
A、has been working
B、had worked
C、had been working
D、was working
【正确答案】：A
【题目解析】：本题考查时态。 Since引导的从句使用了一般过去时态，表明主句动作从过去开始一直持续到说话时间，因此用现在完成进行时态。