It's 12 o'clock now.The following people have been busy all morning .Look at the information and say what they have been doing and how long they have

It's 12 o'clock now.The following people have been busy all morning .Look at the information and say what they have been doing and how long they havebeen doing and how long they have been doing it for,as in the example. пример lynn's been tidying the garden for three hours/since 9 o'clock.