Как решить эту задачу

Чтобы решить задачу, нужно поставить глаголы в скобках в правильную форму Present Simple. Вот ответы:

1. A cheetah runs very fast.
2. Frogs live on all continents except Antarctica.
3. Hippos digest their food slowly.
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.