2. Use the Passive Voice. 1) Radium and polonium/to discover/ Maria Curie. 2) Robert Goddard/ to launch/the first rocket in 1926. 3) "The Origin of Species"/ to write/ Charles Darwin. 4) The telephone/ to use/ to speak to other people.​

Ответ:

Объяснение:

Maria Curie discovered radium and polonium.

The first rocket was launched by Robert Goddard in 1926.

Charles Darwin wrote "The Origin of Species."

The telephone is used to speak to other people.