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This question already has an answer here:

I am really looking for the answer. I will be happy to hear your answers. Thanks

Question:

She brought her three friends, none of .... I have ever met before.

  1. who
  2. which
  3. whom
  4. whose
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marked as duplicate by waiwai933 Jan 6 '14 at 7:22

This question was marked as an exact duplicate of an existing question.

2  
1) welcome to ELU. You might want to visit ELL 2) It may be urgent to you, but we are not that kind of site and we do not do homework 3) this test is all over the web. – mplungjan Jan 6 '14 at 6:43
2  
This question appears to be off-topic because it is about offloading homework. – Edwin Ashworth Jan 6 '14 at 6:44
2  
Suggested migration to ell.se – Kris Jan 6 '14 at 6:45
    
@Kris - Although I think it's good to point this particular user to English Language Learners, I wouldn't want this particular question migrated there. The answer to the question is 3; what else is there to say? Let's save migration for the questions that are more suited to the SE format. – J.R. Jan 6 '14 at 12:32

The answer is "Whom" as it is semantically correct.No other option is correct.

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It is not enough to state dogmatically that one is right or the other wrong; in order for your answer to be useful, it must explain why, with any links or citations as may be appropriate. The Help Center may be of interest. – choster Jan 6 '14 at 7:53

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