A
Where is he taking the guests?
Where are the guests being taken?
Why had they sent him to Australia earier?
Why had he been sent to Australia earlier?
He was cleaning his room when he found his old jacket.
His room was being cleaned when his old jacket was found.
Have those kids been torturing that kitten?
Has that kitten been tortured by those kids?
Some people think that the Earth is flat.
The Earth is thought to be flat (by some people).
They write the science column.
The science column is written by them.
Were they interviewing him when someone broke into his apartment?
Was he being interviewed when his apartment was broken into?
What have they been teaching in this class?
What has been taught in this class?
He has broken the window.
The window has been broken (by him).
They will send him some warning letters soon.
Some warning letters will be sent soon.
They aren't using the main meeting room.
The main meeting room isn't being used.
Had they completed the housework before they called their friends?
Had the housework been completed before their friends were called?
Did they arrange her birthday party?
Was her birthday party arranged?
They have been teaching dentistry in this college since 2007.
Dentistry has been taught in this college since 2007.
Is John going to write the article?
Is the article going to be written by John?
What do the students write?
What is written by the students?
They broke the window after they had hit it with a stone.
The window was broken after it had been hit with a stone.
Where did they send him?
Where was he sent?
What has he broken?
What has been broken?
Can you deliver this envelope tonight?
Can this envelope be delivered tonight?
Does he write the science column?
Are the science columns written by him?
Where were they sending it?
Where was it being sent?
The police didn't find their hiding place.
Their hiding place wasn't found.
Have they ever seen a UFO in this country before?
Has a UFO ever been seen in this country before?
They must obey the rules.
The rules must be obeyed.