Ответ:

3a. Сравнительная степень прилагательных:

  1. Usain Bolt is faster (fast) than a cheetah.
  2. A blue whale is heavier (heavy) than 20 elephants.
  3. Leatherback turtles travel farther (far) in a year than humpback whales.
  4. A Mary River turtle is larger (large) than a green turtle.
  5. Bees are cleverer (clever) than other insects.
  6. Cats are good pets, but fish are more popular (popular).
  7. Sharks are more dangerous (dangerous) to humans than elephants.
  8. Bees don't make honey if it's hotter (hot) than 35°C.