请教老师从句中什么时候用whatever,whoever,whichever它们在句子中做什么成分,与what,who,which区别

题目

请教老师从句中什么时候用whatever,whoever,whichever它们在句子中做什么成分,与what,who,which区别
There is hardly an environment on earth --some species of animal or other has not adapted successfully.A.to which B.wherever C.so D.as（我做这题时,发现上述知识不懂,不知道B哪里错）麻烦知道的老师指导下,学生先谢谢了

答案

首先要看句意,用B翻译的通吗?我翻译不通,另外adapt to 是常用短语,我觉得应该选择A.whatever,whoever,whichever这些whenever无论什么时候I'd like to see you whenever it's convenient.wherever无论在哪里;无论到...