There is hardly an environment on earth ______ some species of animal or other h

题型：不详难度：来源：

There is hardly an environment on earth ______ some species of animal or other have not adapted successfully.

A．to which

B．in which

C．for which

D．on which

答案

A 

解析

试题分析：考查定语从句：先行词是an environment，定语从句中adapt后面缺少介词to，用to which引导定语从句。句意：地球上很难有一种环境，一些动物和其他的物种不能成功的适应的。选A。