Question

1) No one tell us about the problem
-> The problem
2)The milkman brings the milk to my floor every morning
-> The milk
3) they never do that work
-> That work
4) Parents look after their children
-> Their

Answer 1

1) No one tell us about the problem
-> The problem isn't told us about.
2)The milkman brings the milk to my floor every morning
-> The milk is brought to my floor by the milkman every morning.
3) They never do that work
-> That work is never done.
4) Parents look after their children
-> Their children are looked after by parents.

Answer 2

1, The problem isn't told about
2, The milk is brought to my floor every morning by the milkman
3, That work is never done
4, Their children are looked after by parents

Answer 3

1. The problem isn't told us about.

2.The milk is brought to my floor by the milkman every morning.

3.That work's never done.

4.Their children are looked after by parents.