问题补充：
– Do you know that there are many different animals in the zoo?
--Yes, I do. And I also know that some of them are scaring.
A. kinds of ; kinds of
B. kind of ; kind of
C. kinds of ; kind of
D. kind of ; kinds of
答案：
A. kinds of ; kinds of
B. kind of ; kind of
(答案→)C. kinds of ; kind of
D. kind of ; kinds of
解析：kinds of各种各样的,不同种类的;kind of有点儿,有几分.句意:你知道动物园里面有许多种各种各样的动物吗?_是的,我知道.我还知道他们当中一些有点吓人.结合语境可知选C.
