Sử dụng đại từ quan hệ để kết hợp 2 câu thành 1 và đặt đại từ quan hệ vào trong ngoặc đơn nếu chúng có thể lược bỏ.(các em lưu ý cách sử dụng dấu phẩy trong mệnh đề quan hệ không xác định) Ví dụ: The woman is my dear aunt. My father is talking to the woman. --> The woman (whom) my father is talking to is my dear aunt. Hoặc: The woman (that) my father is talking to is my dear aunt. Mr Brown is very friendly . He is my teacher . --> Mr Brown,who is my teacher, is very friendly. Trong câu có mệnh đề quan hệ hạn định này who/that đóng vai trò làm tân ngữ nên có thể bỏ đi được (nên ta để trong dấu ngoặc đơn). 1.That is the table. The carpenter made it one month ago. …………………………………………………………………………………… 2.She gets married to a man. He is taller than her. …………………………………………………………………………………… 3.A microwave oven is a machine. A microwave oven is used to cook food. …………………………………………………………………………………… 4.I went to an accessory shop last weekend. It was quite cheap. …………………………………………………………………………………… 5.Queen Elizabeth II is 87. Queen Elizabeth II has been the queen of England for 61 years now. …………………………………………………………………………………… 6.I have just rented an apartment. The apartment is near my company. …………………………………………………………………………………… 7.His school is called Banking Academy of Vietnam. His school has about 6,000 students. …………………………………………………………………………………… 8.Robert Pattinson is a British actor. He plays Edward Cullen in the Twilight saga. …………………………………………………………………………………… 9.A doctor is a person. A doctor examines patients and gives medical prescriptions. …………………………………………………………………………………… 10.I was given a cat. It was very lovely. …………………………………………………………………………………… 11.Harry Potter book series were written by J.K. Rowling. I enjoyed them a lot. …………………………………………………………………………………… 12.I bought some guavas at the supermarket yesterday. The guavas are tasty. …………………………………………………………………………………… 13.My sister is six years older than me. My sister is also an English teacher. …………………………………………………………………………………… 14.A waitress is a woman. A waitress serves foods and drinks in a restaurant. ……………………………………………………………………………………