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Who is it is waiting outside the room? A. who B. whom C. which D. that 【查看更多】

 

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Who is it ______ is waiting outside the room?

[　　]

　　 　　 　　 　　

A．who

B．whom

C．which

D．that

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Who is it　　 is waiting outside the room?

　 A．who　　　　 B．whom　　　　 C．which　　　 D．that

 

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