题目内容：

you are supposed to _____when you finish your meal in the USA.

优质解答

clean your table

追问：

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\America

追答：

1. clean your table 2. be quiet 3. bring a gift 4. call in advance