_____you have already known each other.I won't introduce you to h_其他解答

_____you have already known each other.I won't introduce you to her.A If B since C until D,Unless
请说下理由.

人气：355 ℃　时间：2019-10-10 06:46:54

解答

后面说不介绍,前面就应该是说因为已经认识,所以要填“因为”,这里只有B 符合