Choose the correct options

1. Hang
   [over|in|out|on]
   , Peter. I'll be ready in a few minutes.
2. The thief demanded that the man hand
   [over|in|out|on]
   his wallet.
3. I have to hand
   [over|in|out|on]
   my science project by 3 pm today.
4. Bill is handing
   [over|in|out|on]
   festival flyers to passers-by.
5. They have just started an environmental club at school. Why don't we join
   [over|in|out|on]
   ?