What would you do if a stranger gave you some medicine and said it would keep you thin or help
you do well on exam?Would you  _1_  it? 
     Sometimes this takes place at some schools in the south.
   2_  those strangers want to give the students is drugs. Drugs can be   3 _that changes the way your
mind or body works. Students at a Foreign Language School learn to keep themselves  _4  by saying
"no".
     From this month, students in other schools are also learning about drugs. "Because teenagers
don't know much about drugs, they might want to try them," Mr. Zhang, the director of a certain Drug
Control Center, said.  
     A sixteen-year-old boy named Peng Fei was an excellent student   5   he tried
drugs. One day, some older boys told him it would be fun. After taking drugs only once, he found it
very   6   to stop. He began to spend all his time and money  _7_  drugs. In the end. he started   _8_  
from school and stealing.
     In China, drugs are becoming a bigger problem for teenagers. One   _9  
people in China were using illegal (不合法的)drugs last year and   _10 _ of them were young people.
There were 10,000 drug users under 16. Students now begin to take trips to Rehabilitation Centers
(戒毒所)  _11_  kids with problem.
     A junior students, Wang Xin   _12   when she visited a center in
Guangdong last term.
     "I just wanted to cry when I    1_3   all the sad stories about drugs users. " She
said.    
     Here is a piece of good advice on   _14   drugs: Never try them,   _15   you are curious.