【题目】—Is your daughter fond of playing the piano?
—On the (反面), she's getting tired of it.

【答案】contrary
【解析】句意：——你的女儿喜欢弹钢琴吗？——正相反，她讨厌弹钢琴。on the contrary固定短语，”正相反“，所以答案是contrary。