could you tell me where you live in?这个句子为什么不对?我知道应该去in但我有几个问

could you tell me where you live in?这个句子为什么不对?我知道应该去in但我有几个问题
1为什么where后面就不能跟介词in,2为什么could you tell me which place you live in.=could you tell me where you live 3什么是关系代词和关系副词,用途作用区别是什么?

where= in which
再问： �ǵ������
再答： ��ϵ������������д����˻������ʻ��ʣ����ھ��г䵱����������ȳɷ֡���ϵ����ڶ���Ӿ���������ʱ���Ӿ�ν�ﶯ�ʵ��˳ƺ���Ҫ�����дʱ���һ�¡� 1��who, whom, that ��Щ�ʴ�������д����˵���ʻ��ʣ��ڴӾ��������������£� Is he the man who/that wants to see you?��������������� ��who/that�ڴӾ�������� He is the man whom/ that I saw yesterday.��������������Ǹ��ˡ� ��whom/that�ڴӾ�������� 2) Whose ����ָ�˻��(ֻ��������, ��ָ������ͬof which����), ���磺 They rushed over to help the man whose car had broken down. ���˳����ˣ���Ҷ��ܹ�ȥ��æ�� Please pass me the book whose (of which) cover is green. ��ݸ����DZ���Ƥ���顣 3)which, that�������������д����������ʻ��ʣ��ڴӾ��п����������ȣ����磺 A prosperity which / that had never been seen before appears in the countryside. ũ�������ǰ��δ�еķ��١���which / that�ھ�������� The package (which / that) you are carrying is about to come unwrapped. ���õİ��ɢ�ˡ�(which / that�ھ���������) ��ϵ���ʿɴ�������д���ʱ�䡢�ص�����ɵ���ʣ��ڴӾ�����״� 1��when, where, why��ϵ����when, where, why�ĺ����൱��"���+ which"�ṹ����˳�����"���+ which"�ṹ����ʹ�ã� ���磺There are occasions when (on which) one must yield. �κ��˶��в��ò������ʱ�� Beijing is the place where (in which) I was born. �������ҵij���ء� Is this the reason why (for which) he refused our offer? �������ܾ����ǰ������������ 2��that�����ϵ����that�������ڱ�ʾʱ�䡢�ص㡢��ʽ�����ɵ���ʺ�ȡ��when, where, why��"���+ which"��Ķ���Ӿ䣬�ڿ�����that����ʡ�ԣ����磺 His father died the year (that / when / in which) he was born. ��������������������ˡ� He is unlikely to find the place (that / where / in which) he lived forty years ago. �������ҵ�����ʮ��ǰ��ס��ĵط��� Whatֻ��������Դ� �䣬 �������Ӵ�ʣ����Ӿ�ľ���ɷ֣��Ҳ���ʡ�ԡ� I think (that) you will like the stamps.What we need is more practice.
再问： Whatֻ��������Դ� �䣬 �������Ӵ�ʣ����Ӿ�ľ���ɷ֣��Ҳ���ʡ�ԡ�ʲô��˼
再问： Whatֻ��������Դ� �䣬 �������Ӵ�ʣ����Ӿ�ľ���ɷ֣��Ҳ���ʡ�ԡ�ʲô��˼
再答： ����what������ԴӾ䣬�ھ��������κγɷ֣�what����ʲ���ʡ�ԡ� He is the man that I saw yesterday�����that������Ϳ���ʡ�ԡ�