Do you want to stop smoking? Listen to the students of Grade 5. They will give you some strong advices to do it.
"You must give up smoking because it can produce lung cancer"
"You should stop smoking because smoking can cause a heart disease"
"You must give up smoking because smoke can produce a cancer of colon"
"Smoking can reduce fertility"
"Don't smoke! You can have pneumonia or asthma"
"You should gve up smoking! It can cause leukemia"