3. Put the verbs in brackets into the correct present simple form.

1. A cheetah runs very fast. 2. Frogs live on all continents except Antarctica. 3. Hippos give birth underwater. 4. The blue whale weighs 50 tons at birth. 5. Dolphins sleep with one eye open. 6. The black and white rhino has two horns. 7. Butterflies taste with their feet. 8. A crocodile moves fast with its tail. 9. A deer eats grass. 10. Leopards keep moving. They never stay in the same place.