英语作文，要120字

This modern society is also called the commercial society.Nobody can avoid the business and commodities. Therefore,with some knowledge of commercials,a person will certainly find more opportunities.In schools,it is not only useful but also important and necessary to teach the students some knowledge of commercials.And it will be good for them to enter and find a position in the society. Personally I think,it is wise for the students to attend such kind of optional courses.Everybody knows clearly that schooling is a preparation for the future.If you have a positive and rich preparation,you will get more freedom in the future job-hunting and living.Such kind of courses will help you understand the society and make you be aware of the importance of the commercials.Otherwise,you will be lag behind the other people,in another word,you will not be comfortable in the future social trend.