... Imagine you are a speaker of a WHO meeting. You are introducing the actual situation of toothache in HoChiMinh city and the dental campaign activities.You have to read the text carefully and ... information about toothache in HoChiMinh city.(From Internet, newspaper, Encarta Encyclopedia…)Find information about dental campaign activities(From Internet, newspaper, Encarta Encyclopedia…)Consult ... and answer these following questions : - What is tooth decay? - Give some causes. - How to solve these problems? - Introduce the dental campaign activities - Collect information - Design a...