1. Mr. Black is a teacher. His lessons are interesting.
2. My sister is a doctor. Her work is very important.
3. Peter is a pupil. His compositions are brilliant.
4. W. Shakespeare is a writer. He wrote many plays.
5. Beatles is a popular group. Their music is pleasant.
соединить два предложения союзом, кто. чей побыстрей пожалуйста