Relative pronouns

Front

The doctors ________ fight coronavirus are brave

Back

who

Front

Telescopes are optical instruments ________________ used by astronomers.

Back

which

Front

Schools are __________ teachers work

Back

where

Front

Handcuffs are devices ________ used by Police.

Back

which

Front

Architects are professionals _________ buildings.

Back

who

Front

Banks are places ________ people save money

Back

where