Sử dụng đại từ quan hệ ( Who, Whom, Which, That ) để kết hợp các cặp câu, dùng dấu phẩy khi cần thiết.
1. Some documents have been found. They were stolen from a car.
->
2. Dr.Michelle Weil wrote a book about "techno trees".She is a psychologist.
->
3. He works for a computer magazine. The magazine is very popular in Mexico.
->
4. Marta has a brother. Her brother's name is Manuel.
->
5. Do you know the man? They are talking about him.
->
Loga
Sinh Học lớp 12
