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mobile phones are used by people everywhere today

iPads, smartphones are bought by teenagers more often than earlier

This play will be staged by them at the beginning of next season

A smartphone is used by my granny easily

My new computer was broken by me

This film will be shown by them on TV

New inventions are being created by scientists

A bridge over the river is being built by them

A letter was being typed by her at 5 o'clock yesterday

Delicious fruit ice-cream is being sold by my granny there now

The room was being cleaned by someone when i arrived

The computer is being used by her at the moment

A new hospital near the airport has been built by them

Only two letters had been written by her by 5 o'clock

The work will have been finished by us by 9 o'clock

The room has been cleaned by her

When you arrived, dinner had been cooked by her

The block of flats will have been built by them by next month