问题标题:
【Thereishardlyanenvironmentonearth_____somespeciesofanimalsorotherhavenotadaptedsuccessfully.A.inwhichB.onwhichC.towhichD.forwhich】
问题描述:

Thereishardlyanenvironmentonearth_____somespeciesofanimalsorotherhavenotadaptedsuccessfully.

A.inwhichB.onwhichC.towhichD.forwhich

葛廷金回答:
  C   关系代词which代指先行词environment,介词to和动词adapt构成adaptto“适应”。【标签】介词+关系代词
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