根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

     Tang Ling often smoked cigarettes (香烟) in his school's washing room. He started smoking 1_____ the

age of 14. One day he learnt that the NBA star Yao Ming, an ambassador (大使) to the Chinese Association

on Tobacco Control (中国控烟协会), asked people not to smoke. Yao Ming was Tang's favorite star, 2_____

his words meant a lot to him. He decided to 3_____ up smoking.

     According to the Chinese Association on Tobacco Control, about 350 million Chinese smoke. Among

4_____, 50 million are teenagers. Sun Jiangping of Beijing University said, "Teenagers can get cigarettes

5_____, especially when their parents smoke or shops 6_____ cigarettes to them. It's very important 7_____

parents to help their children stop smoking."

     A 15-year-old boy named Li Kun from Beijing said his 8_____ didn't smoke. Because they thought smoking

could make people feel badly ill, they only allowed him to play with friends without smoking. Living in such a

good family helped Li say 9_____ to cigarettes. Some of his smoking classmates once told Li that smoking

made boys look 10_____, but Li disagreed. He said, "Smoking is unhealthy and it's not cool at all. Please stop

smoking now!"