问题

It’s nearly four years since I worked in that firm. I ________ a band with other fellows.
A:operated
B:had been operating
C:was operating
D:am operating;
B:had been operating
C:was operating
D:am operating;
正确答案是:
同类题型
Did you have a chat with Tom?—No, I was trying to ________ an opportunity to do so, but I couldn’t.
__ you know, I am with my aunt and grandmother
What’s wrong with your ipad2 The sound____is not clear. –Yes. It has been broken for some time.
This is the first time we _____a film in the cinema together as a family. [ ]