This is the biggest tiger _____ he has ever seen in the zoo.

题目

This is the biggest tiger _____ he has ever seen in the zoo.
A.that B.which C.who D.whom which也可以指代物怎么就不行

答案

A
因为先行词前有最高级,只能用THAT
定语从句中只能用that ,不能用which 的情况：
1 先行词有序数词,形容词最高级时或本身是序数词,基数词,形容词最高级时只能用that
2当被修饰的行行词为 all ,any
.much ,many ,everything ,anything ,none ,the one 等不定代词时.
3 当先行词被the ony ,the
very ,the same ,the last ,little ,few 等修饰时
4 当先行词里同时有人和物时.
5 当主句是以who / which 引导的特殊疑问句时.
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