1)  Does the girl clean her room on sundays?

Does the girl clean her room on sundays or on mondays?

What does the girl usually do on  sundays?

When does the girl usually clean her room?

Why does the girl clean her room on sundays?

Which of the rooms does the girl usually clean on sundays?

The girl usually cleans her room, doesn't she?

Who usually cleans the room on sundays?

2) Who is eating the porridge now?

The dog is eating porridge now, isn’t it?

Is the dog eating the porridge now?

Is the dog eating the porridge or the soup now?

What is the dog eating?

Why is the dog eating porridge?

3) The boy has done this work, hasn’t he?

Has the boy done this work?

Why has the boy done his work?

Has the boy done this work or another work?

What has the boy done?

Who has done this work?