请问这3个there, their ,they are.

there
[TZE, TE]
adv.
在那里
At or in that place:
在那里：
sit over there.
坐那边
To, into, or toward that place:
到那里，往那里去：
wouldn't go there again.
别再去那里了
At that stage, moment, or point:
在哪个阶段，在哪个时刻，在那点上：
Stop there before you make any more mistakes.
在你犯更多的错误之前就罢休巴
In that matter:
在那件事上：
I can't agree with him there.
在那件事上我不能同意他
pron.（代词）
Used to introduce a clause or sentence:
用于引导从句或句子：
There are numerous items. There must be another exit.
有许多项目。一定有另一个出口
Used to indicate an unspecified person in direct address:
在直接对话中指非特定的人：
Hello there.
喂
adj.（形容词）
Used as an intensive:
用于强调：
That person there ought to know the directions to town.
那个人应该知道镇子的方向
n.（名词）
That place or point:
那个地方或那点：
stopped and went on from there.
停下来并从那儿开始
interj.（感叹词）
Used to express feelings such as relief, satisfacti