Snakes can crawl but they can't fly.

Fish can swim but they can't climb.

Parrots can fly but they can't crawl.

Chimps can climb but they can't fly.

Ответ:

a.Snake can crawl, but they can't walk

b.Fish can swim, but they can't fly

c. Parrots can fly, but they can't swim

d.Chimps can jump but they can't fly