Ron: I like playing the piano.
A. Do you like playing the piano?
B. What do you like doing?
因為如果是 A 的話，答案一定要加上 ‘Yes/No’，變成： ‘Yes, I like playing the piano.’ (長答）/ ‘Yes, I do.’ (短答）
圖片來源：‘Grammar Expert’ 4A, published by Kidz Education