閱讀下面短文，掌握其大意，然后從各題所給的四個(gè)選項(xiàng)（A、B、C和D）中，選出最佳選項(xiàng)。

　　When I smoked with my family,I would feel so 　　1　　 and good that nothing else in the world seemed to 　　2　　．I thought that smoking weed（煙草）was okay since many of my family members and people at my school smoked．　　3　　 ever happened to them．　　4　　 I started smoking weed a lot more during lunch and after school．I never thought 　　5　　．of it just that I wanted to smoke．Not that it was actually 　　6　　 my mind and body．Then I began to fall behind in school．I would 　　7　　 classes,come home late and spend all my babysitting money．I would spend 　　8　　 8 to 18 dollars a day．I never thought 　　9　　 that marijuana（大麻）had a bad effect on those things．Maybe my coming to class high was the reason why I was failing or coming home late．As I continued to smoke marijuans,I began to notice that I would always have the strong desire to smoke and that I would get 　　10　　 cigarettes if I smoked hose,but I don't．　　11　　 I have learned more about marijuana,I have 　　12　　 the amount of marijuana that I use．I don't want drugs to be the most important in my life．I'm not smoking every day,and not spending as much money．Now that I have 　　13　　 on my habit,I am 　　14　　 more money．I'm ready to go back to school and do good,so that I can make 　　15　　．of myself．Everyone is always saying how weed 　　16　　 your mind and how it solves problems．I think it only brings more 　　17　　．Marijuana is not good for your body or your brain．I'm not trying to tell you not to smoke,I'm just letting you know that marijuana can be 　　18　　 to your health,and 　　19　　 it may cause some long term negative（負(fù)面的）effects．Help yourself now,before it is too late．I don't want to lecture anyone,just 　　20　　 my experience with you．I do still smoke,but not as often．

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