小题1:A
小题2:D
小题3:B
小题1:根据●After killing an animal, a cheetah waits half an hour to catch its breath.描述，可知选A。
小题2:根据●Elephant babies take 22 months to develop inside their mothers before they are born.描述，可知选D。
小题3:根据Bat’s wings are overgrown hands.描述，可知选项B描述错误。