Метод, выявляющий влияние совокупности коррелирующих между собой независимых переменных на зависимую переменную

1. I am a pupil. 2. My father is not a teacher, he is a scientist. 3. Is your aunt a doctor? - Yes. she is. 4. Are they at home? - - No, they are not at home, they are at work. 5. My brother is a worker. He is  at work. 6. Are you an engineer? - - Yes, I am. 9. Is your sister at school? - No, she is not at school. 10. My sister is at home. 11. Is this your watch? - Yes, it is. 12.She is an actress. 13. This is my bag. 14. My uncle is an office-worker. 15. He is at work. 16. Helen is a painter. She has some fine pictures. They are on the walls. She has much paper. It is on the shelf. The shelf is brown. It is on the wall. Helen has a brother. He is a student. He has a family. His family is not in St. Petersburg, it is in Moscow.

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