The key answer of exercise 3

a)

1. We're from Spain. We aren’t from Italy.
2. You're teachers. You aren’t students.
3. They're Chinese. They aren’t Japanese.
4. We're from Mexico. We aren’t from Brazil.
5. You're in class 3. You aren’t in class 2.
6. They're from Egypt. They aren’t from Turkey.
7. She's in room 4. She isn’t in room 5.
8. I’m Polish. I’m not Russian.

b)

1. We're from Spain.
2. They're in class 6.
3. She's on holiday.
4. He's from Brazil.
5. We're here on business.
6. It's in Canada.

c)

1. Are they your dogs
2. Are they in class 1
3. Are they from England
4. Is Fernanda Italian
5. Is Zurich in Switzerland

d)

1. 4
2. 2
3. 1
4. 5
5. 3