16) We suppose he has found a job, ? 17) I'm afraid she won't be able to do this, ?
18) The British can't cook, ?
19) Charles wants to become a chef, ?
20) You shouldn't argue with your parents, ?
21) Our team lost the game, ?
22) She seldom cooks, ?
23) She needn't do all the work by herself, ?
24) You and I are good friends, ?
25) Everyone wants a good job, ?
26) You didn't understand what I told you, ?
1.A need is something you have to have to survive or complete a task. A want is simply the desire for something, in many cases something to satisfy a need. You need food to survive.
2.In the field of behavioral economics, the term utility refers to the perceived value (i.e., usefulness) an individual receives when they purchase a good or service. There are four different types of utility: form, place, time, and possession utility.
3.We must help to anybody who fell in bad trouble to do our society better/
4.We speak with different people from different countries.Many nations want submarines. Economists say that utility determines 'the relationship between a consumer and a commodity'.
Utility varies between different people and between different nations. A vegetarian does not want meat, but may rate the utility of bananas very highly, while a meat-eater may prefer steak. A mountain-republic like Switzerland has little interest in submarines, while maritime nations rate them highly.
5.The production of pianos falls sharply in wartime.
The utility of a commodity is also related to the quantity which is available to the consumer. If paper is freely available, people will not be so interested in buying too much of it. If there is an excess of paper, the relative demand for paper will go down.
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