clean your table感谢你的回答。但要考虑美国或者中国文化。再请教：(1)you are supposed to _____when you finish your meal in China.(2)you are supposed to _____when you eat your soup in China\America.(3)you are supposed to _____when you are invited to a party in China\America.(4)you are supposed to _____when you want to visit a friend in China\America1. clean your table 2. be quiet 3. bring a gift 4. call in advance