Rewrite the sentences in two ways using passive structure. Begin with the words given. 2 They estimate that a third of babies born in the UK in 2013 have a life expectancy of 100.
It is
A third

3 They say that Vitamin C is good for colds.
It is
Vitamin C

4 People once thought that carrots were good for your eyesight.
It was once
Carrots were once

5 People believe that the ancient Egyptians were great doctors.
Its is
The ancient Egyptians
6 They say that the actor put on ten kilos for this film.
It is
The actor

2 They estimate that a third of babies born in the UK in 2013 have a life expectancy of 100.

It is estimated that a third of babies born in the UK in 2013 have a life expectancy of 100.

A third of babies born in the UK in 2013 is estimated to have a life expectancy of 100.

3 They say that Vitamin C is good for colds.

It is said that vitamin C is good for colds.

Vitamin C is said to be good for colds.

4 People once thought that carrots were good for your eyesight.

It was once thought that carrots were good for your eyesight.

Carrots were once thought to be good for your eyesight.

5 People believe that the ancient Egyptians were great doctors.

It is believed that the ancient Egyptians were great doctors.

The ancient Egyptians are believed to be great doctors.

6 They say that the actor put on ten kilos for this film.

It is said that the actor put on ten kilos for this film.

The actor is said to put on ten kilos for this film.