—Have you ever been to Shanghai Mary?—Yes. I there three times.A. have goneB. have beenC

问题补充：

—Have you ever been to Shanghai, Mary?

—Yes. I there three times.

A. have gone

B. have been

C. went

D. was

答案：

A. have gone

(答案→)B. have been

C. went

D. was

解析：句意:-Mary ，你去过上海吗？-是的，我去过那三次。have gone 去了，还没有回来；have been 去过，已经回来了。C和D都是一般过去时，不符合句意。故选B。