用合适的不定代词填空

用合适的不定代词填空
1.I'm sure( )is in the house.Just knock louder!
2.( )can help them.They must finish their work by themselves.
3.-Would you like ( )to eat.-No,thanks.I'm full
4.There is ( )wrong with Mary.She's just tired.
5.( )can make Tom feel frightened.He's very brave.
6.( )phoned while you were out,but he didn't leave a message.
7.I wanted to buy my mother a red scarf,but there was ( )left in the shop.
8.I agree with most of what you said,but I don't agree with ( )
9.I don't think there is ( )at my home now.My parent have just gone to work.
10.Mary is so friendly that ( )wants to make friends with her.