We met Mary and her husband at a party two months ago.______we've had no further communication.
【正确答案】 C
【答案解析】从前一句表时间的状语“two months ago”及整句话的意思可判断出答案为C。thereafter表示“其后,此后,后来”,如:Thereafter we heard no more of this suggestion.(此后这个建议不再有人提起了。)