1, Over the last few years, the number of overweight people in the world has increased dramatically.

2, Social networking sites such as Facebook are believed to impact negatively on both individuals and society.

3, Global environmental damage is considered as the most pressing problem in the world today.

4, People hold different opinions towards the idea that every citizen should have the right to study at school or university for free.

5, In some counties, people encouraged youngsters to work or have a gap year between finishing high school and starting university studies.

6, Some people hold an opinion that joining a gym or health club is the best way to stay fit; however, others claim that walking and climbing stairs is enough.

7, Education is believed to be provided exclusively by the state and private education should be prohibited.

8, People are arguing whether oungstes should get engaged in unpaid jobs or not.

9, Studying in a college or university is believed to be the best way for students to prepare for the future career. On the contrary, some people suppose that students should leave school as soon as possible to build their career through work experience.

10, Thanks to computers and modems, office workers are now able to do much of their work from home instead of working in offices every day.