Решить только 19-ое упражнение

a) There are more than forty universities in Britain but the names of the most famous institutions are Eton, Oxford and Cambridge; people do not always realize what place these institutions occupy in the whole educational system. Apart from public schools there is a complete system of state primary and secondary education. б) Oxford and Cambridge are universities each having about 10,000 students.Eton is a public school, and the best known of the public schools, which, in spite of their name, are not really public at all, but independent and private secondary schools taking boys from the age of thirteen to eighteen years.Many, after gaining this certificate, leave school to start training, for various careers. в) Ail children must, by law, receive full-time education between the ages of live and fifteen.