句型转换。
1. I studied at home last week.（改为一般疑问句）    
   _______you____at home last week?
2. The boy didn't have a key ring.（改为肯定句）    
   The boy______a key ring. 
3. She works in the hospital.（对画线部分提问）  
   ______she work ?   
4. Are they watching TV?（作否定回答）  
   ______, they____________.  
5. My father is a bank clerk.（对画线部分提问）  
   ______ ______ your father______?