thus, in the american economic system it is the demand of _____ ____, coupled with the _____ of businessmen to ____ ________ and the desire of individuals to maximize their ______, that together determines what shall be produced and how ______ are used to produce it.
因此，在美国的经济体系中，个体消费者的需求与商人试图最大化其利润的欲望和个人想最大化其收入效用的欲望相结合，一起决定了什么应该被制造，以及资源如何被用来制造它们。
参考答案：individual consumers,desire,maximize profits,income,resources
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for a family of four，for example，it is more _____ ___ ___ ____cheaper to sit ____ at home，_____ almost _____ entertainment______，than to go out ___ _______of amusement elsewhere.
譬如，对于一个四口之家来说，舒舒服服地在家中看电视，就能看到几乎数不清的娱乐节目，这比到外面别的地方去消遣又便宜又方便。
参考答案：convenient as well as, comfortably, with ,unlimited ,available,in search of