Response:

In my opinion, computer has made the greatest influence on people's life in my country. First of all, it is one of the best communication tools. In the past, if we wanted to chat with somebody faraway, we would have to write a letter, mail it out and wait for the person to mail his/hers back. However, we can write an email now instead and it just takes a few seconds to send it to the person. Secondly, it helps people a lot in their work. For example, they can make PowerPoint and give a presentation using the computer. Also, they can have a business meeting with a company overseas via the video chat software. To sum up, computer affects people's life a lot in my country.

Response:

Well, considering possible problems he may come upon, he should make good preparations beforehand. Firstly, in case that he forgets the lines during the presentation, besides reciting more and practicing more privately, he can make notes cards so that if unfortunately, he forgets the lines, he can refer to the key points. Moreover, he may feel nervous when standing in front of a group of strangers. For this, he could practice in front of relatives and friends first and then practice in front of some new friends.

Response:

I prefer train. There are some reasons. Firstly, it will benefit the environment as a whole. Public transportation is acknowledged as a main solution to environment protection in the city, as it effectively decreases the exhaust emission, and thus the wide use of public system will benefit the living surroundings. Moreover, it's pretty hard to find a parking lot in the city center and even if there is one available, most of the time, itcharges a lot per hour. So apparently, private car is not a smart solution, particularly in holidays. And of course, it's less likely to ride a bicycle when there is a long distance to go.