Greatest inventions: the passive

The optical lenses ... by Mesopotamians and Egyptians hundreds of years ago.

• was developed

• were develop

• were developed

The earliest compasses ... of lodestone in China between 300 and 200 B.C.

• were made

• were maked

• were maded

The invention of the light bulb ... to Thomas Edison in 1879.

• were attributed

• was attributed

• is attributed

In the 19th century, the internal combustion machine ... by Belgian engineer Etienne Lenoir and ... by Germany's Nikolaus Otto.

• was created / improved

• were created / improved

• created / improved

Pasteurisation was developed ... the French chemist and biologist Louis Pasteur.

• of

• to

• by

Cars ... invented by a number of individuals in the late 19th century.

• was

• are

• were

Benjamin Franklin ... [KNOW] as the Father of electricity.