根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。(选项中有两多余选项;每小题2分,共10分;答案只写选项所代表的字母,注意大小写) 1 . If you are growing tomatoes in your backyard for sale,you are producing for the market.You might sell some to your neighbors and some to the local managers of the supermarket.But in either case,you are producing for the market. 2 . If people stop buying tomatoes,you will stop producing them. If you take care of a sick person to earn money,you are producing for the market.If your father is a steel worker or a truck driver or a doctor or a grocer,he is producing goods or service for the market. 3 . You may spend money in stores,supermarkets,gas stations and restaurants.Still you are buying from the market.When the local grocer hires you to drive the delivery truck,he is buying your labor in the labor market. 4 . But for each person or business that is making and selling something,it is very concrete( 具体的 ).If nobody buys your tomatoes,it won’t be long before you get the message. 5 . It is telling you that you are using energies and resources in doing something the market doesn’t want you to do.