句型转换。
Tom can play the piano．（改为否定句）
Tom ________ ________ the piano．
I want to join the music club．（对画线部分提问）
________ ________do you want to join？
She can paint . (变否定句)
__________________________________
He can sing an English song.(对划线部分提问)
What _____he _____?
He can swim. (变一般疑问句并作肯定回答)
____ ___ swim ? ____, ___ ____.