1. C. lung cancer

Line 1: Smoking causes lung cancer 

2. D. smoking

Line 2&3:  Smoking is also the leading cause of mouth cancer, tongue cancer, and throat cancer.  

3. C. early deaths  

 Line 4: Smoking causes one million early deaths in the world every year. 

4. B. smoke  

Paragraph 2:  Smokers breathe smoke out into the air. They breathe it out on their children and their wives or husbands.

5. B.  People who live with smokers.

Last sentence of paragraph 2.

1. C <Smoking causes lung cancer, which is the number one cancer among men.>

2. D <Smoking is also the leading cause of mouth cancer, tounge cancer, throat cancer.>

3. C <Smoking causes one million early deaths in the world every year.>

4. B <Smokers breathe smoke out into the air. They breathe it out on their children and their wives or husbands.>

5. A <Children whose parents smoke ... those marired to non - smokers.>