Exercise 4. Complete the sentences with the words in the box. communal ethnic terraced stilt bamboo floating Heritage Site speciality costumes poultry 1. You can find a lot of traditional _______________ houses in this area. 2. Hoi An ancient town was recognized as a World Natural _______________ in 1999. 3. If you go to Sapa, you can distinguish people from different ethnic groups by their_______________. 4. Famous _______________ rice fields can be found in Yen Bai, Ha Giang .5. Some _______________ 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. _______________ is a sustainable building material that is actually stronger than wood, bricks oreven concrete. 8. There are 54 _______________ groups in Viet Nam recognized by the Vietnamese government, andeach 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 iswell-known as a _______________ of this area. 10. One of the most famous _______________ markets in Viet Nam is Nga Bay floating market in HauGiang province