第二节 短文改错
Most smokers want to stop smoke . Many of 76．
them have tried more than once but fail . 77．
Although they know smoking may kill them
and 78．
cause a serious illness yet they can’t give up . 79．
The reason is that tobacco contains
nicotine , 80．
a drug which gets one into habit of smoking
81．
Once you start take the drug , it is hard
to stop . 82．
If you go without it for an hour or two ,
it 83．
begin to feel bad . The only thing can stop
84．
you feel bad is the drug contained in 85．
the cigarettes . So your habit of smoking
goes on .