passive voice 2

These christals ... ... gems.

• are call

• are called

• were call

Some rocks contains metal ... ... ores.

• are called

• is called

• called

Fabrics ... ... around the house to makes clothes, curtain, towels and furniture coverings.

• are use

• uses

• are used

Wool and silk ... ... from natural fibres.

• make

• are made

• is made

Chickens ... ... as farms animals all over the world.

• are kept

• keep

• is kept

Hens ... ... on special food and kept in a small cages.

• is fed

• are fed

• were feed

The males cattle ... ... bull.

• called

• are called

• is called

Twice a day, cows ... ... in from the fields tobe milked.

• bring

• are bring

• are brought

Female cattle that ... ... for their milk are called dairy cows.

• are rear

• reared

• are reared

Cows ... ... to pull ploughs and carts.

• are use

• are used

• is use