Complete the second sentence to mean the same as the first
Use the passive forms.

1. It is known that some animals sense magnetism.

Some animals _______
magnetism.

2 It is believed that birds evolved from dinosaurs.

Birds _______
from dinosaurs.

3 It was thought that tomatoes were poisonous.

Tomatoes _______
poisonous.

4 It is known that there are many other solar systems in our
galaxy.

There _________
many other solar systems in our galaxy.

5 It was believed that snake oil cured various diseases.

Snake _____ oil various diseases.