Question 21 is based on the passage you have just heard

    A Savannah cat is a crossbreed between a domestic cat and a medium-sized wild African cat called the Serval. (19) The unusual cross became popular among breeders at the end of the 1990s. And in 2001, the International Cat Association accepted it as a new registered breed.

    The Savannahs are tall and slim and can weigh up to 9.1 kilograms, making them one of the largest breeds of cats that people can own. They have a spotted code similar to that of many types of wild cats and their ears are very large. (20) They are also commonly compared to dogs in their loyalty and can be trained to walk on a lead and to fetch, and often noted characteristic of the Savannah is its jumping ability. They are known to jump on top of doors and high cabinets. Some can leap about 2.5 metres high from a standing position. Cats are typically known for being very inquisitive and so are the Savannahs. They often learn how to open doors and cupboards. Many Savannah cats do not fear water and will play with or even dive into water. (21) Some owners even shower with their Savannah cats. Presenting a water bowl to Savannah may also prove a challenge, as some will promptly begin to bat all the water out of the bowl until it is empty using their front paws.

21. What do some people do with their Savannah cats?

解析：B。录音说到萨凡纳猫会玩水，一些主人甚至和他们的萨凡纳猫一起洗澡。故正确答案为B。C项利用dive作干扰，但原文中提到萨凡纳猫本来就会潜水，不需要人类去教，故C项错误。