I have been working here since I this new position.A. offeredB. have offeredC. was offere

问题补充：

I have been working here since I this new position.

A. offered

B. have offered

C. was offered

D. had been offered

答案：

A. offered

B. have offered

(答案→)C. was offered

D. had been offered

解析：句意，从我被提供这个新的职位起，我就一直在这里工作。这里since引导了一个时间状语从句。Since常意为“自从……”,主句常用现在完成时，从句常用一般过去式。故排除B和D。又因为时间状语从句中，主语”I”和“offer”之间是被动关系，故排除A，选C。