Good morning , is Mr Green there ?
No, he isn't here.
Are you working at this moment ?
He usually works until 4 p.m.
What about Mrs.Green .Where is she?
She is doing the shopping.
She always does the shopping on Wednesday afternoons.
Where are the children ?
They are playing football.
They always play football after school.
How do you know all this ?
Who are you ? Jack: I am the burglar !