I don't know_________ cat this is.[ ]A. who B. whomC. whenD. whose-九年级英语

题目简介

I don't know_________ cat this is.[ ]A. who B. whomC. whenD. whose-九年级英语

题目详情

I don't know_________ cat this is.  
[     ]
A. who  
B. whom  
C. when  
D. whose
题型:单选题难度:中档来源:同步题

答案

D

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