Positive and negative sentences. Exercise 2. Are the sentences true or false? Correct the false sentences. Example: Cats can't see in the dark. False. Cats can see in the dark. a) Cats can't swim. b) Dogs can climb trees. c) Kangaroos can't jump. d) Parrots can speak. e) Penguins can fly. f) Tortoises can run fast. g) Elephants can live until they're seventy.

a) Cats can't swim. False. Cats can swim.

b) Dogs can climb trees. False. Dogs can't climb trees.

c) Kangaroos can't jump. False. Kangaroos can jump.

d) Parrots can speak. True. Parrots can speak.

e) Penguins can fly. False. Penguins can't fly.

f) Tortoises can run fast. False. Tortoises can't run fast.

g) Elephants can live until they're seventy. True. Elephants can live until they're seventy.