Mary types letters in the office.

• Letters are typed by Mary in the office.

His father will help you tomorrow.

• You will be helped by his father tomorrow.

Peter broke this bottle.

• This bottle was broken by Peter.

They are learning English in the room.

• English is being learned in the room.

No one had told me about it.

• I had not been told about it.

The chief engineer was instructing all the workers of the plan.

• All the workers were being instructed of the plan by the chief engineer.

Somebody has taken some of my books away.

• Some of my books have been taken away by somebody.

They have provided the victims with food and clothing.

• The victims have been provided with food and clothing by them.

People speak English in almost every corner of the world.

• English is spoken in almost every corner of the world.

You mustn't use this machine after 5:30 p.m.

• This machine mustn't be used after 5:30 p.m.

Mary types letters in the office.

• Letters are typed in the office by Mary.

His father will help you tomorrow.

• You will be helped by his father tomorrow.

Peter broke this bottle.

• This bottle was broken by Peter.

They are learning English in the room.

• English is being learned in the room by them.

No one had told me about it.

• I had not been told about it by anyone.

The chief engineer was instructing all the workers of the plan.

• All the workers of the plan were being instructed by the chief engineer.

Somebody has taken some of my books away.

• Some of my books have been taken away by somebody.

They have provided the victims with food and clothing.

• The victims have been provided with food and clothing by them.

People speak English in almost every corner of the world.

• English is spoken in almost every corner of the world.

You mustn't use this machine after 5:30 p.m.