Present Perfect:
I have done my homework already.
He hasn't done his homework yet.
I have never met such a nice person.
Present Simple:
I go to school every morning.
We usualy have tea after breakfast.
She works as a shop assistant.
Present Continuous:
I am listening to music now.
We are watching TV right now.
Peter is playing football now.
Past Simple:
I saw him yesterday.
They painted the house two years ago.
Nick visited his grandmother last week.
Past Continuous:
I was playing tennis when he called me.
She was writing a letter yesterday at 5 o'clock.
We were cooking dinner when he came.
Объяснение:
1.The children's song
2.My friend's room
3.My son's question
4.This woman's life
5.My parents' flat
6.The client's letter
7.Those students' answer
8.The Bernard Shaw's plays
9.The goods' piece
10.My son's computer is modern/ My son's modern computer