【正文】
t you do in the streets?→ You mustn’t shout in the street. 7 What must you do when you visit someone at home?→ You must knock at his door first. 13 Think and write. Write your advice for people ing to China. You mustn39。t walk. At the second sign, you mustn39。t do at school. You mustn39。 Today we shall put language in use. That is, to behave ourselves, not only according to the grammar rules, but also to the different manners and customs. ■Language practice Do more language practice. In China you must wait and open your present later. In Australia you can39。t be rude to parents. I mustn’t put the medicine in the wrong place. I mustn’t drop litter. I mustn’t lock the door without taking the keys. I can do nothing. I can put down my parents’ words. I can shake the shelf for a book. I can talk loudly to my dog. 4 Talk and say. Work in pairs. Tell each other three things you must do at home and three things you mustn39。s something nice to eat. → chocolate 2 It39。t you give?→ You mustn’t bring big, expensive presents. 5 What mustn39。 advice. Choose the five most important pieces of advice about customs in China. 。t or can do. 1 What must you wear?→ You must nice clothes. 2 What mustn3