1. A computer is necessary for college students for three reasons: it is convenient, it is very accurate and it can accomplish many tasks easily.

 2.Successful politicians have the following qualities: listen to people’s opinions and try to solve, set some reasonable rules to manage a country, give some welfare for the people.

 3.A generation gap exists in my home because of the age-spacing and the different opinions.

 4.To survive a major disaster such as an earthquake requires the sufficient knowledge, quick reacting, and calm decision.

 5.Living in a large city has certain advantages over living in a small town: the transportations are more convenient, more job opportunities are available.