Directions: The following is a passage. After reading it, you are required to answer the following questions. This is an interesting place. You come here to exchange things, you come here to save money, and you come here to give your waste things a home. What is it? Not the supermarket, not the place that deals with rubbish of course, but a place on our campus. Yes, it is the flea market. I have already sold my books and bags that I no longer need there, and have bought a lovely bottle there at a good price. Before showing you the four benefits of doing this according to my experience, I have to tell you that you should keep an open mind when you go there. You may not come away with the things that were on your list, but that's the beauty of the hunt: you never know what you'll find. If you didn't find a particular item this week, don't give up, since you'll have chance to find it next time. The following are the four reasons. Firstly, it saves money. By selling the things you no longer need, you can help those students who have not got their own income. With the similar function and a much lower price, the financial problems that troubled many poor students can be solved more easily. What’s more, experts estimated that if all textbooks in universities can be used once again, we can save about 100 million yuan which can help you to travel to moon for one time. Secondly, it helps develop a good habit. Selling waste things in a flea market can help the sellers to cultivate a good habit of making full use of their belongings. Thus you will think twice before buying a new product next time. Thirdly, it fosters an intelligence to engage in business. You can learn to communicate with others and promote sale of your products to others at a proper price by doing this. Your practical ability can also improve a lot. Last but not least, it is environmental-friendly. According to the latest report, if a small-size city reuses the textbooks for one time, they can save 1.5 million yuan in only a semester’s time. Anyway, a flea market is an interesting place to visit if you want to buy something or if you want to buy nothing. Don't be surprised if you find the very thing you have been looking for or come back home with your hands empty. Hope the fact I have presented to you will help you to make a wise choice next time when dealing with your waste things. Remember: many a little makes a fickle. 1. What did the author sell in the flea market? 2. What can help a seller develop a good habit of making full use of his belongings according to the article? 3. How much can we save if all textbooks in universities can be used once again? 4. How will selling waste things help you foster an intelligence to engage in business. 5. How much money can be saved if a small-size city reuses the textbooks for one time?