1.I seem to have met you before,are you local / are you from out of town?
2.I should have seen that girl before,it's just that I couldn't remember her name.
3.You look familiar,I can't recall where I might have met you.
4.I am not familiar with her,this is the first time I've seen her.
5.We just met and we are trying to get to know each other.лл���æ���ڶ��� should have seen.should have done �DZ�ʾ��Ӧ�����ģ�����û������ ������Ա�ʾ ��ȷ��ô �Ƿ����Ǹ�Ů���ǰɡ�лл ���� couldn't remember....��ʾ�ǹ�ȥ���ǵðɡ���could ��Ϊ��̬���ʣ�ֻ���������ί�