Помогите с английским, пожалуйста! 30 БАЛЛОВ!!!!!!!


Use the necessary pronoun:
1. I need no help. I do it .... .
2. She decided to return .... books to .... needs protection.
3. Our planet is very fragile and .... needs protection.
4. Look after the children: they can burn ... in the fire.
5 ''I'm not afraid of that spider'', the boy said to .... .