【正文】
u _______ ride your bike in the playground. 4. You _______ do your homework. 5. You _______ listen to the teacher. must must mustn39。t can39。t can39。We must say Mr and Mrs when you speak to older people . You can use first names with your friends . You mustn’t talk too loudly . In some trains you can’t even use your mobile phone . Listen to a teenager talking about life. Check the things he must do. 1 6 4 3 2 5 8 7 must mustn’t 1. clean up bedroom 2. wash up 3. stay out after 9:00 . 4. smoke 5. do homework 6. wash hands 7. use the telephone without asking 8. play music loudly after 10:00 . √ √ √ √ √ √ √ √ Listen again . What two things does