

Ex: Complete the sentences, using the correct passtive forms of the vebs in brackets:
- Earth (hold) .... by the gravity of the sun and orbits around it.
- Radia waves (discover) .... by Heinrich Hertz.
- Our tent (blow) .... over in the night by the wind.
- Chess (play) .... for around two thousand years.
- The homeless (take) .... to a safe place where temporary accommodation will be provided for them.