People should not pay for the public transportation.
In order to solve problems of the present and future, people should review the past.
It is important for parents to set a limit on the TV pr**rams their children watch.
Printed books have more effects on society than television does.
In order to achieve your own happiness, you have to try to make other people happy.
If you cannot say anything nice to someone, you’d better say nothing.
Scientists should be responsible for the negative impacts of their discoveries.
People should take a secure job immediately when they find one instead of waiting for the jobs that they find more satisfying.
Some people prefer to work for 3 days a week with more working hours every day; Others prefer to work for 5 days a week, with shorter working hours every day. Which do you think is more enjoyable?
Most business people are motivated only by the desire for money?
Students who keep their rooms neat and organized are more successful than those who do not?