Complete the blanks by inserting the correct prepositions.

Many people today are worried drugs. It seems that more and more people are getting addicted dangerous substances, such as heroine , crack and cocaine. This damages their health. But what leads people becoming drug addicts?Why do people inject drugs their veins? In some cases it is the inability to cope problems they may have in their everyday lives.

When we complain the problems that hard drugs cause, we need remember that people suffer all kinds of health problems caused legal substances , like alcohol and cigarettes. We would all benefit more education and the government should attempt make sure that we know all the risks involved.