山东省临朐实验中学高一英语新人教版必修3课件《book3,unit2 healthy eating》speaking &writing
山东省临朐实验中学高一英语新人教版必修3课件《book3,unit2 healthy eating》speaking &writing第3页

4. Each student should put up their hands to show that they would like to speak. 5. Each student should follow the argument and make a contribution that is appropriate to what has been said before. 6. No one should repeat an argument.