1. economics is a successfully studying of the material life. -
Present Simple, Active
2. we must examine how people have solved this problem.
Present Simple, Active Present Perfect, Active
1. a high standard of living was guaranteed by the organiced cooperation of large numbers of people. Past Simple, Passive
2. the problem of starvation is not solver for millions of human beings
Present Simple, Passive
1) One confusing thing about British schools is that 'public' schools are really private schools.
2) They are not run by the government and parents pay for their children 3) to attend these schools. Only 7% of children go to public schools.
4) Eton is a very old school but it is not the oldest schools in Britain. That honour belongs to Winchester, 5) founded 60 years earlier.
6) Henry VI, the founder of Eton College, became King of England at the age of nine months and the King of France by the age of eight.