is my friend'?
the girl is the object acted upon (talked to) in this sentence. you spoke to her rather than you talked to she. therefore, whom is correct. however, if she talked to you it would be the other way around, because then "she" talked to you. she would now be the subject. so the girl who spoke to you in the office is my friend.
which is correct: 'for my sister, whom i love very much,' or, 'for my sister, who i love very much'?
in this case, whom is correct, because the object of your love is your sister think about it this way -- if a person is having 