句型转换。

1. His mother does the shopping twice a week. (就划线部分提问)                

   ____________________________________________________?      

2.I have to go to a meeting. (变为一般疑问句)                                 

  _____________________________________________________?        

3. He hates doing some chores because it’s boring. (就划线部分提问)          

   ____________________________________________________?      

4. I need some help. (变为一般疑问句)                                         

   ____________________________________________________?      

5. You needn’t worry about it. (变为同义句)                                  

   You _____ _____ _____ worry about it.                              

“豳风桥”的“豳风”二字出自何处？