句型转换。
1. Lily can play the piano. (改为否定句)
    Lily _____ _____ the piano.
2. Little Mary can play basketball. (改为一般疑问句) 
    _____ little Mary _____ basketball?
3. They are from the Beijing International School. (对画线部分提问) 
    _____ _____ they _____?
4. Can Betty speak English? (作肯定回答) 
    _____, she _____.
5. Can Tony and Nick swim? (作否定回答)
    No, _____ _____ .

句型转换。