题目内容：

Mary is good at playing the piano.（改为同义句） Mary（ ）well（ ）playing the piano.
再翻译:在那边的是什么种类动物？
What kind of animals are（ ）（

优质解答

Mary（does ）well（in ）playing the piano.
注；be good at = do well in 擅长于……
What kind of animals are（ over ）（ there