I. Заполни пропуски в предложениях формами глагола "to be".
1. This ... my sister. She ... my best friend.
2. I ... from Perm. Where ... you from?
3 ... you British or Russian?
4. Where ... their books? - They ... in their bags.
5. Who ... in the room? - Peter ...
6. We ... on holidays. This ... our address.