1. He works in a bank. (就画线部分提问)
    _____ _____ he _____ ?
2. They are workers. (就画线部分提问)    
    _____ _____ they?
3. I want to be a teacher. (就画线部分提问)    
    _____ _____ you want to be？
4. Tom wants to be a policeman. (改为否定句)  
    Tom _____ _____ to be a policeman.
5. He wants to be a football player. (改为一般疑问句)  
    _____ he _____ to be a football player?