—Don’t you think it would be much more convenient to have our own car?— but we don’t have

问题补充：

—Don’t you think it would be much more convenient to have our own car?

—,but we don’t have enough money.

A. I couldn’t agree more

B. I’m afraid not

C. I believe not

D. I don’t think so

答案：

(答案→)A. I couldn’t agree more

B. I’m afraid not

C. I believe not

D. I don’t think so

解析：but we don’t have enough money是个转折句，说明对话双方意见一致。