【正文】
Unit 7 Would you mind keeping your voice down? drop litter talk loudly smoke in public pick up litter keep voice down join the line put out cigarettes impolite behaviors polite behaviors break the rules follow the rules cut in line Read and answer: What is the article mainly about? Etiquette. Read and choose Para. 1 ____ Para. 2 ____ Para. 3 ____ Para. 4 ____ a. If we see someone breaking the rules of etiquette, we may politely give them some suggestions. b. Etiquette is not the same in every culture or in every situation. c. Sometimes some ru