1. This is Mrs. Jones. Her son won the championship last year.
-> This is Mrs. Jones whose son won the championship last year.
Vế sau là danh từ son nên dùng đại từ quan hệ "whose" thay thế cho tính từ sở hữu.
2. Mr. Smith said he was too busy to speak to me. I had come specially to see him.
-> Mr. Smith, who (m) I had come specially to see, said he was too busy to speak to me.
Ta thấy tân ngữ him ở vế thứ 2 đóng vai trò tân ngữ dùng để thay thế cho Mr. Smith (người) =>sử dụng mệnh đề quan hệ với Whom hoặc who
3. His girlfriend turned out to be an enemy spy. He trusted her absolutely.
-> His girlfriend, whom he trusted absolutely. turned out to be an enemy spy.
4. The car had bad brake. We were in this car.
-> The car that we were in had very bad brakes.
5. This is the story of a man. His wife suddenly loses her memory.
-> This is the story of the man whose wife suddenly loses her money.
6. The man didn't turn up. I was waiting for him
-> The man whom I was waiting for didn't turn up.
7. The firm is sending me to New York. I work for this firm
-> The firm which i work for is sending me to New York.
8. I saw several houses. Most of them were quite unsuitable.
-> I saw several houses, most of which are quite unsuitable.
9. The Smiths were given rooms in the hotel. Their house had been destroyed in the explosion
-> The Smiths, whose house had been destroyed in the explosion, were given rooms in the hotel.
10. He wanted to come at 2 am. This didn't suit me at all.
-> He wanted to come at 2 a.m, which didn’t suit me at all.