句型转换

1. You used to be really shy,   ___    ___   _?(改为反意疑问句) 

     ______ 

2. I used to play the guitar.(改为一般疑问句)     

              _ you_____ to play the guitar?  

3. I don't know how I can swim.(改为同义句)    

    I don't know______  ___    swim.   

4. The boy used to watch Engljsh-language TV.(对画线部分提问)    

     ______did  the boy used to _____?  

5. I'm still afraid of the dark.(改为同义句)