Those successful deaf dancers think that dancing is an activity sight matters more than h

问题补充：

Those successful deaf dancers think that dancing is an activity sight matters more than hearing.

A. when

B. that

C. which

D. where

答案：

A. when

B. that

C. which

(答案→)D. where

解析：定语从句考查题。先行词为an activity，关系词where在从句中做状语。