填空题:根据下面资料，回答41-50题
How do Americans Spend Their Free Time?
Americans spend their free time in 41 (variety) ways. People enjoy building things and 42 (sew) their own clothes. They do these things for fun and for 43 (economic).25 million adults continue their education,44 (chief) by going to school in the evening at their own 45 (expensive). Americans also devote a lot of their time to the needs of their communities,often without any pay. Why do they do it?
There are several answers. The idea of 46 (cooperate) and sharing responsibility with one another for the benefit of all is as old as the country itself. When the country was first 47(found) in 1776,it was necessary for the settlers to work together to live. They had crossed dangerous
seas and risked all they had for political and 48 (religion) freedom. It is true that some people use their leisure because they are 49 (true) interested in the work ; or that they are learning from the experience. No matter what the reason is, hundreds of thousands of so called leisure hours are put into hard, 50 (pay) work on one or another community need.
第（49）题选