Question 21 is based on the passage you have just heard.

Passage Two

听力原文

        There’s an endless amount of scientific data proving that dogs can develop strong bonds with their owners. People aren’t kidding when they say they “love” their dog or their dog “loves” them. (19) But we’re rather ignorant about the nature of the relationships that form between dogs. In an effort to understand the matter further, I spoke with Dr. Marc Bekoff a researcher and former professor of animal behavior. (20) The doctor’s response to the question of whether or not dogs can fall in love like humans do was a straight “of course”. He went on to say that if love is defined as a long-term commitment—meaning dogs seek one another out when they’re apart, they’re happy when they’re reunited, they protect one another, they feed one another, they raise their children together—then, of course, dogs love each other. Now our furry friends don’t really experience “romantic” love, like in the movies, but they can form deep and lasting bonds with their fellow dogs as well as humans. (21) In fact, evidence shows that most dogs stay with one partner their whole lives. In actuality, love between dogs can be even more intimate than human relationships. When they interact, they aren’t afraid to smell each other and will express themselves clearly and honestly. Once again, it seems we have a lot to learn from dogs.

21. What does the speaker say about most dogs?

解析：A。录音最后提到，实际上，有证据显示，大部分狗一生只与一个伴侣相伴。因此A项符合讲话者的表述，故A项正确。录音中也提到了romantic love，但说的是狗并不会感受到浪漫爱情，因此C项与录音原文相悖，故错误。其余两项在原文中均未提及，故排除。