六年级改句子 急急急急！

Did your cousin sing and dance last Children's day?
No, he didn't.
What did your cousin do last Children's Day?
When did your cousin sing and dance?

Do people eat moon cakes and watch the moon at Mid-Autumn Festival?
No, they didn't.
What do people do at Mid-Autumn Festival?
When do people eat moon cakes and watch the moon?

Is Halloween in October.
No, it isn't.
When is Halloween.

1. Who snag and danced last Children's Day?
   

   When does your cousin sang and danced?

2. What dose people usually  do at Mid-Autumn Festival?

   When does people usually eat moon cakes and watch the moon?

3. When is Halloween? 

   好久不用英语，语法可能有些地方不太准确，见谅！