2. Is Maria a teacher?
No, she isn't. She's a waitress.
3. Is Jan fifty years old?
No, he isn't. He's forty years old.
4. Is Bill Romanian?
No,he isn't. He is French.
5. Are Jan and Paula thirty years old?
No, they aren't. They are forty years old.
6. Is Jan a plumber?
No, he isn't. He is an engineer.
Succes!!