问题

. I first met Mr Zhao nine years ago. He____ at a chemical college at that time.

A:had worked
B:has worked
C:was working
D:had been working

正确答案是：

同类题型

What would you like to have for supper—________ noodles ________ rice is OK. I don’t mind.

We _________ the difficulty together, but why didn’t you tell me?

The subjects students study in America are different from________in China.

I really don’t know I put my wallet after I paid the bill.

Do you know the answer thequestion