---My uncle goes to climb Mount Tai every year.-Oh really? He climbing mountains.A. u

问题补充：

---My uncle goes to climb Mount Tai every year.

---Oh, really? He climbing mountains.

A. used to hate

B. is used to hating

C. used to hating

D. is used to hate

答案：

(答案→)A. used to hate

B. is used to hating

C. used to hating

D. is used to hate

解析：本题考查固定结构辨析，used to do ：过去常常做某事；be used to doing ：习惯于做某事；be used to do sth ：被用来做某事。根据句意，应选A：哦，真的吗？他以前曾恨爬山的。