定语从句相关问题There is one place___the sea is about 11 kilometers

定语从句相关问题
There is one place___the sea is about 11 kilometers deep
A that B where C when D which
为什么D A为什么不行
My grandmother,_1_will be 72 this year,is a good __2_of this
2是example1是which 还是who
又逗号不应该是（非）（有没有非我不清楚啊）限制性定语从句吗,不应该用which 答案是who,why

1.which 是关系代词,在定语从句中作主语或宾语,而后面的定语从句并不需要有主语或宾语,因此,我们可以确定用where表示地点．
2.定语从句分为限制性定语从句和非限制性定语从句,区别就在于：如果定语从句前没有逗号,那么就是限制性定语从句；如果定语从句前有逗号,那么,就是非限制性定语从句．在非限制性定语从句中不能用that,这句话指的是人,因此,用who;My grandmother,who will be 72 this year...这句话中的who指的是前面的my grandmother; 如果前面的先行词是物,那么,用which.
example of:…的例子,…的榜样
is a good example of this ...是这方面的典范．
(第二句好像不全,下面是有关于定语从句的语法,
定语从句在句子中起定语作用,定语从句是修饰名词或代词的,被修饰的名词或代词称为先行词；定语从句由关系代词或关系副词引导,当关系代词作定语从句的主语时,其后的谓语动词的人称和数取决于先行词的人称和数．
定语从句一般位于先行词的后面,定语从句有关系代词who,whom,whose,which,that,as和关系副词when,where,why等引导．关系代词和关系副词在定语从句中担任成分．
第一句有问题：
我爱的就是 那个昨天JACK在踢球时,正在睡觉的那个Luna.这句话应译为：
I love Luna who / that was sleeping when Jack played football.
第二句是正确的．who引导定语从句,在定语从句中作主语．
关系代词：
who指人,在定语从句中作主语；whom指人,在定语从句中作宾语（有时,也可用who）,可以省略； whose引导定语从句,通常指人,也可指事物,在从句中作定语；which引导定语从句,指事物,在从句中作主语或宾语,作宾语是可以省略；that引导定语从句,即可指人,也可指物,在从句中做主语或宾语,作宾语是可以省略．
eg.The many who is shaking hands with my father is a policeman.(who指人,作主语)
Mrs Smith (whom) you met yesterday is a friend of mine.(whom指人,作宾语,可以省略)
This is the scientist whose name is known all over the country.(whose作定语修饰后面的name)
Guilin is a city which has a history of 2,000 years.(which指物,作主语)
There is a film (that) i'd like to see.(that指物,在定语从句中作宾语,可以省略)
She is the only one among us that knows French.(that指人,作主语)
关系副词：
when引导定语从句,表示时间,其先行词往往是表示时间的名词（如：time,day,hour,year等）．
eg.October 1,1949 was the day when the People's Republic of China was founded.(when表示时间)
where引导定语从句,表示地点,其先行词往往是表示地点的名词(如：place,room,house,street,area等)．
eg.This is the place where my mother was born.(where表示地点)
why引导定语从句,表示原因,常用在先行词reason后面．
eg.I don't know the reason why she looks unhappy today.(why 表示原因)