Does smoking lead to lung cancer?

Does smoking lead to lung cancer? 1.Smoking can lead to lung cancer. smoking can reason lung cancer air pollution can also lead to lung cancer.为什么lead不能改成cause On TV (someone) said that smoking does not cause lung cancer smoking can ______ lung cancer.So his father does not smoke some experts say that smoking c____ will cause lung cancer _________ smoking,he would not have got cancer in the lung. 1.smoking can cause lung cancer（肺癌）.（同义句） _______ lung cancer ,smoking can sause loss of weight and im lung cancer是什么意思 急死了!改同义句（初二知识范围内）1）smoking can cause lung cancer.2）Ben prefe