1. Choose the correct alternative.
1 A: Is/Are you English? B: No, I'm/'re not.
2 A: How is/are your mum? B: She's/'re fine.
3 A: Is/Are we in our classroom? B: No we am not/aren't.
4 A: Is/Are they in our class? B: No, they isn't/aren't.
5 A: Is/Are this your pencil? B: Yes, it is/am.