17. Прочитай текст и закончи предложение, выбрав из предложенных вариантов тот, который соответствует тексту. The children are at the circus now. They are having a good time! The animals are funny. Look! The chimp is playing the piano. The mice are dancing on the box. The bear has got a small green bike. It is riding the bike very well. But the hippo isn't singing. It doesn't like it. The cat is jumping up and down. It likes it a lot! The hippo isn't singing because ... a) the cat is jumping up and down. b) it doesn't like it. c) it likes it a lot!