Вставить пропущенные буквы. dogs can sw_m and r_n. But they cann_t s_ng and sk_p. Cats cannot sw_m, but they can j_mp. C_ckerels can s_ng.
Dogs can swim and run. But they can't sing and skip. Cats can't swim, but they can jump. Cockerels can sing.
Swim,run,cannot,sing,skip,swim,jump,sing.