1. Our teacher assigned us the homework. We had to finish it within a week.
2. Ngoc has just moved to a new school. It was built two years ago.
3. The man is selling lottery tickets. He used to be very rich.
4. Hai's friend is a very interesting boy. He came from Da Nang.
5. Mekong Delta is located in the South of Viet Nam. It provides most of the rice for exporting.
1. Our teacher assigned us the homework. We had to finish it within a week.
-> Our teacher assigned us with the homework which we had to finish within a week
2. Ngoc has just moved to a new school. It was built two years ago.
-> Ngoc has just moved to a new school which was built two years ago
3. The man is selling lottery tickets. He used to be very rich.
-> The man who used to be very rich is selling lottery tickets
4. Hai's friend is a very interesting boy. He came from Da Nang.
-> Hai's friend who came from Da Nang is a very interesting boy
5. Mekong Delta is located in the South of Viet Nam. It provides most of the rice for exporting.
-> Mekong Delta which provided most of the rice for exporting is located in the South of Viet Nam
