Passive voice

The Harry Potter series _________ by JK Rowling.

• is written

• was written

• wrote

• had written

The most famous portrait in the world, the Mona Lisa, ________ by Leonardo da Vinci.

• was painted

• is painted

• painted

• were painted

X-rays ________ in 1985 by the German Professor Conrad Roentgen

• have discovered

• was discovered

• were discovered

• discovered

Scissors ________ for cutting thin materials, such as paper and metal foil.

• are used

• used

• is used

• used

The movi Avatar _________ by James Cameron.

• directs

• directed

• was directed

• has been directed

The next Olimpic games ______ in Paris.

• were held

• has been held

• is held

• will be held

When _______ the great wall of China ________?

• built / were

• was / built

• is / build

• built / were

Olives _______ in Mediterranean countries

• will grow

• are grown

• is grown

• was grown

Google ________ officially _______ in 1998.

• were / lauched

• has been/ lauched

• is / launch

• was / launched

How often ______ hotel carpets _______?

• is / clean

• are / cleaned

• were / cleaned

• are / clean