i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？

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i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？

i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？
i don't know ____ book this is.
A.who B.whom C.whose D.Who's 该怎么选 为何
为啥不能选d？

i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？
C 谁的
Who's =Who is
译为：谁是
与原题不符

C 我不知道 这是谁的书。 其他的后面都不能加名词

选C谁的 ，D的意思是谁是 who is的简写

C whose 谁的
原句译为：我不知道这是谁的书
（A who谁，对人称提问用这个 B whom是who的宾格 D who's 是who is的缩写，意思是谁是）

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