We all like animal. Because they are interesting.A. kind of; kind ofB. this kind of; kin

问题补充：

We all like animal. Because they are interesting.

A. kind of; kind of

B. this kind of; kind of

C. kind of; kind of

D. this kind of; this kind of

答案：

A. kind of; kind of

(答案→)B. this kind of; kind of

C. kind of; kind of

D. this kind of; this kind of

解析：kind of是“有点儿”，用来修饰形容词；而this kind of是“这种”，a kind of是“一种”，all kind of是“各种各样的”它们后面要跟名词。根据题干，本句的意思是“我们都喜欢这种动物。因为他们有点儿有趣。”所以本题选B。