---Will you please repeat your idea?---Sure. But I don't think that you attention.A. paid

问题补充：

---Will you please repeat your idea?

---Sure. But I don think that you attention.

A. paid

B. pay

C. are paying

D. were paying

答案：

A. paid

B. pay

C. are paying

(答案→)D. were paying

解析：

本题考查时态题。根据语境，我认为你当时并没有集中注意力，陈述过去正在发生的事情，故用过去进行时。句意：——请你重复一下你的想法，可以么？——好的，但我认为你没有注意。