综合填空选择方框中所给的词并用其恰当形式填空。
music,  cool,  not only,  healthy,  can,  over,  give up,  should,  for,  cause
Some people think that smoking can help them relax. Some students think it’s   to smoke. In fact, smoking is really   . Do you know that there are  4000 chemicals in cigarettes? These chemicals are bad   our bodies. They may   cancer and other diseases.
The smoke from cigarettes harms smokers but also other people. It is called “second-hand smoke” and it   be more dangerous and has higher risks. Smokers   use smoking to help themselves relax. They must   smoking as soon as possible. Doing some sports and listening to   can also make them feel relax. So, let’s say no to smoking!