阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
Unbelievable Stories of Animals Acting Just Like Humans
◆Horses are picky eaters
Horses have an even better sense of smell than humans do. When horses raise their noses and open their nostrils (鼻孔) , their nervous system allows them to sense smells we can’t sense. This might explain why they refuse dirty water and carefully move around meadows, eating only the tastiest grasses, experts say.
◆Whale says thanks
In 2011, a whale expert spotted a humpback whale trapped in a fishing net and spent an hour freeing it. Afterward, in an hour-long display of thanks, the whale swam near their boat and leaped into the air about 40 times.
◆Pandas like to be naughty
Is there anything more lovely than a baby panda, except maybe a human baby? In fact, baby pandas sometimes behave like human babies. They sleep in the same positions and value their thumbs. Pandas are shy by nature for its shy behaviors such as covering its face with a paw of ducking its head when confronted by a stranger.
◆A cat honors its owner
Paper towels, and a plastic cup are just a few of the gifts that Toldo, a devoted three-year-old gray-and-white cat, has placed on his former owner Iozzelli Renzo’s grave every day since the man died in September 2011. Renzo adopted Toldo from a shelter when the cat was three months old, and the two formed an inseparable bond. After Renzo passed away, Toldo followed the coffin to the cemetery, and now "stands guard" at the grave for hours at a time.
21. What can horses do to pick delicious grasses?
A. Feel them. B. Taste them. C. Smell them. D. Observe them.
22. What do the whale and the cat have in common according to the passage?
A. They are clever. B. They have a grateful heart.
C. They are active and lovely. D. They have a good sense of smell.
23. Which of the following acts like a human baby according to the passage?
A. The whale. B. The cat. C. The horse. D. The panda.
