Read the passage then choose a correct answer to answer the questions. Traditionally, rural villages in Vietnam produced handicrafts when they were not busy with planting or harvesting crops. Over time, many villages developed the expertise to make specialised products and so particular villages became famous for such things as weaving, woodwork, lacquer work and metal products. With industrialisation many villagers moved to the cities but maintained their craft skills and networks to produce products for the city market, for example craft villages make furniture, grow flowers or make utensils for the urban population. Other villages changed from making traditional crafts to producing different products desired by an industrialised society. For example, the villagers of Trieu Khuc changed from traditional paper making to recycling plastic. There are now many craft villages in Vietnam based on recycling plastic, paper or metal. 19. When do rural villages in Vietnam produced handicrafts traditionally? A. When they were not busy with planting or harvesting crops. B. When they were busy with planting or harvesting crops. C. After they finish harvesting crops. D. Before they finish harvesting crops. 20. What do many villages developed over time? A. They developed the expertise to make daily products. B. They developed the expertise to make specialised products. C. They developed the expertise to make their own furniture. D. They developed their old furniture. 21. What does the word maintained in line 5 refer to? A ignore B conserve C make D improve 22. Which of the following is not true? A. Rural villages produced handicrafts in their free time. B. Some villages were popular with weaving, woodwork, lacquer work and metal products. C. Many craft villages based on farming. D. Some villages make furniture, grow flowers or make utensils Mọi người giải giúp em với ạ. Em cảm ơn ạ