1)border: Felix wil travel to Europe. He cross many borders on foot.

2)rare: Candy thought teacher not giving English home work is rare.

3)prevent: John will sleep in tank to prevent mosqitoes.

4)separate: Emmas is a team leader. She separated own team in to 2 groups.

5)a number of: Jed helped a number of wildlife. People called him animal's father.