Are wooden chopsticks a serious in china ?discuss why ,what

Chopsticks are w_____ used in china a serious flood___in China in 1998 Discuss what type of marketing is in china What is the most serious pollution in China? Why are bycycles so popular in china In China,people are used to h_____ the chopsticks while eati why are you so serious? Air pollution is now a serious problem in China 英译汉 英语翻译They are caught in a snow storm in a small wooden house. What are the most serious social problems China is facing no what are considered good manners in China? what are some good gestures in china?