单项选择题A.The man thinks the woman can earn the credits.B.The woman is begging the man to let her pass the exam.C.The woman has to attend a summer course to graduate.D.The woman is going to graduate from summer school.
单项选择题A.Their taming for circuses and zoos.B.The destruction of their natural homes.C.Man’s lack of knowledge about their behavior.D.The greater vulnerability to extinction than other species.