----- Nội dung ảnh -----
1. You can find a lot of traditional **stilt** houses in this area.
2. Hoi An ancient town was recognized as a World Natural **Heritage Site** in 1999.
3. If you go to Sapa, you can distinguish people from different ethnic groups by their **costumes**.
4. Famous **terraced** rice fields can be found in Yen Bai, Ha Giang.
5. Some **poultry** farmers keep ducks and geese in their farms.
6. When we went on a trip to Tay Nguyen, we stayed in a **house** with local people.
7. **Bamboo** is a sustainable building material that is actually stronger than wood, bricks or even concrete.
8. There are 54 **ethnic** groups in Viet Nam recognized by the Vietnamese government, and each has their own language, traditions, and subculture.
9. If you visit the north-western region of Viet Nam, you must try five-coloured sticky rice which is well-known as a **specialty** of this area.
10. One of the most famous **floating** markets in Viet Nam is Nga Bay floating market in Hau Giang province.

Exercise 6. Underline and correct the mistakes in the following sentences.
1. Emma has washed the dishes after dinner.
2. Oh my god, I put too much salt into the soup.
3. My teacher was angry because some students did not do their homework.
4. It is very dangerous to play with knives.
5. It took me around five to six hours to finish my job.
6. My daughter likes cheese very much.
7. I asked my professor for advice on my career.
8. On my way to the countryside, I saw some buffalo.
9. There is only a few buses on the road today.
10. Mr. John has three children, two boys and one girl.