5 предложений с предлогов Who.5 предложений с предлогом Which

1.Which of them they are journalists?2.Which is the shortest month of the year?3.Which book do you need?4.Не informed me about it in time, which helped me very much.5.Those jeans which you want to buy are really expensive.1.Who is the woman you were talking to when I saw you this morning? 2.Who was that called a few minutes ago? 3.Who is younger you or your friend? 4.Who is the highest in your class? 5.Who of you can answer this question?