Ответ:
Use are with plural subjects and is with singular subjects. In short answers, repeat the form of be.
- Are Jenny and George from Australia? — No, they aren’t.
- Is Kangya from Thailand? — Yes, she is.
- Is Tony from the USA? — Yes, he is.
- Are Rafa and Pedro from Brazil? — Yes, they are.
- Is Miguel from Spain? — Yes, he is.
- Is Youssef from Thailand? — No, he isn’t. He’s from Egypt.
