1. Lucy can dance the disco. (对划线部分提问)
    ________ can Lucy ________?
2. I think he could swim. (改为否定句)
   I ________ think he ________ swim.
3. Wang Junfen can row a boat. What about you? (改为同义句) 
    Wang Junfen can row a bout. ________ ________ you?
4. He does his homework every day. (改为一般疑问句)
    ________ he ________ his homework every day?
5. Is Lucy writing in English? (用often改写)
    ________ Lucy often _________ in English?