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
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
A environment是先行词，可以说adapt to an environment(适应环境)，故应选择介词to。