阅读理解。 Most American families are smaller than the families in other countries. Most American families have one or two parents and one or two children each. When children are young, parents often ask them to  do  some work around the house.   And   in  many families, parents often give the money for doing the housework by children. And children can learn how to make money for their own use. Some children will find a part-time job(兼职) to get the money to use. So children know how to make money and take care of themselves when they are young. Children in the USA will   leave their parents' home  when they grow up.   They usually live far from their parents because they want to find good jobs. They often write to their parents or telephone them. And they often go to visit their parents on holidays. Parents usually let their c hildren choose their own jobs. Americans think it important for young people to decide on their lives by themselves. 1. Most of American families have ______________ people each. A. one or two B. two or four C. tow to four D. about five 2. Children have to do some _______________ at home when they are young. A. housework B. homework C. shopping D. office work 3. They can get money for their ______________ when they are young. A. housework B. part-time jobs C. voluntary (志愿的) work D. both A and B 4. Do children in America usually live with their parent s when they grow up? A. Yes, they do. B. No they don't. C. We can't find the answers. D. Some do, some don't. 5. Children ____________their parents. A. write to their parents or telephone. B. write to their parents and visit C. write to their parents, telephone them or visit D. go to their parents' home and meet