my opinion

1-Smoking:I think smoking is bad habit
Smoking is a big reason for cancer.
The benefit of smoking is to noise the people who don't like the smoking
2-Fast food:it can make people to be overweight
I like the fast food, because it has a very delicious taste. Also, it has many ways to make it.
Fast food becomes the diseases, because it is a junk food
3-Marriage before the age of eighteen: people under the age of eighteen should be allow to marry
What is the problem when the person get married before 18? It saves him from the worst diseases.
The person before 18 isn't ready to face all the problem. Also, he doesn't understand the marry life. 
4-drink alcohol and drugs:I believe drink alcohol  and  drugs destroy many people lives
Alcohol becomes the diseases. Actually, it is a disease. It kills the mind.

5-Illiteracy:In my opinion,it can effect the economic growth

6-Driver license:people are not allowed to drive without driver license

7-Good way to learn English:I think listening is a good way to learn English

8-Action movies: watching action movies allow people to be entertain