e, one of the most terrible killers in out modern society, is mainly caused by smokers, as can be seen from the graph.

　　in 2002, thousands of fires happened in china. about 50% of them were caused by smokers who left cigarette-ends everywhere. 30% were caused by defective insulation and 20% by children playing with matches. no matter what type of the fire was, there was one thing in common: carelessness.

　　we should warn children of the dangers of playing with matches. workers should know the importance of good insulation to people’s lives. smoking should not be in public places.

　　15.

　　hi, jason,

　　you asked me about yao ming. here is something i got when i searched the websites at home.

　　yao ming, who is now 2.26 metres tall and 134kg in weight, was born in shanghai on the 12th of september,1980. it is said he likes meat most and his favourite colour is blue. the man he respects most is late premier zhou enlai and the one he believes in most i

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