----- Aren’t you tired of practising playing the piano day after day?
------ , I enjoy every minute of it.
A. On the other hand
B. On the contrary
C. Now and then
D. For one thing
网友回答
A. On the other hand
(答案→)B. On the contrary
C. Now and then
D. For one thing
解析：考查介词短语：A. On the other hand另一方面B. On the contrary正相反C. Now and then时而，D. For one thing首先，句意：--你对每天练习钢琴厌烦吗？--正相反，我很享受每分钟。选B。