根据短文内容从方框中选择恰当的单词并用其适当形式填空,使短文完整通顺

根据短文内容从方框中选择恰当的单词并用其适当形式填空,使短文完整通顺
be,much,we,buy,away,look,final,problem,harm,study
Now lots of teenagers like smoking.It's a big(1)____.Some of them smoke just for fun and some think smoking(2)____cool;others smoke because there(3)____many people around them that smoke.
As we all know ,smoking is(4)_____,especially to students.Some teenagers even steal money so that they can(5)_____cigarettes.Besides,smoking can influence our(6)_____because it does harm to brains.(7)____,it is really bad for health because it can cause many diseases.
Therefore,we should protect(8)_____from smoking.First,we should learn(9)_____about the danger of smoking.Second,we should keep(10)_____from people who smoke.