8.
In the USA，children start school when they are five years old．In some states they must stay in school
1 they are sixteen．But most students are seventeen or eighteen years old when they
2 ， secondary schools．There are two kinds of schools in the USA：public schools and private schools．
3 children go to public schools．Their parents do not have to
4 their education because the schools
5 money from the government．If a child goes to a private school，his parents have to get enough money for his schooling．Some parents still
6 private schools
though they are much more expensive．
Today about half of the high school students 7 in universities after they finish secondary schools．A student at a state university does not have to pay very much if his parents 8 in that state．
Many students 9 while they are studying at universities．In this way they get into 10 working habits and live by their own hands．
