第1个回答 2015-05-22
肯定不对!
应该这么说:
Do you know who(whom) you are talking to?或者Do you know who you are talking with?
第2个回答 2015-05-22
应该是:Do you know who you are talking with?
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第3个回答 2015-05-22
错句。改写:
Do you know who you are talking with?