1. Определим, какие буквы необходимо вставить в слова.
1.1. 1 A dog can rub.
1.2. 2 A mouse can jump.
1.3. 3 A fish can swim.
1.4. 4 A chimp can climb.
1.5. 5 A bird can fly.
Ответ: 1 A dog can rub. 2 A mouse can jump. 3 A fish can swim. 4 A chimp can climb. 5 A bird can fly.