帮忙翻译几个句子，汉译英，，准确率高点，，

1．他已经参观过他的祖先居住过的地方．
He has already visited the place where his ancestor lived.

2．你认得那个站在树底下的女孩吗？
Do you know the girl who is standing under the tree?

3．他有一台他父母给他买的计算机．
He have a computer which his parents bought to him.

4．那个爸爸是医生的男孩，学习非常努力．
The boy studies hard which his father is a doctor.

5．那个窗子开着的教室，是我的教室．
It' my classroom which the windows opend.

6．我还记得你到北京去的那一天．
I still remember that day which you arrived Beijing.

7．我最喜欢的地方是纵所周知的春城－昆明．
I like Kunming best which is everyone known.

8．这是我母亲工作的学校．
My mother works in this school.

9．你能解释你迟到的理由吗？
Can you explian the reason why tou come late?

10．我正在等的那个女孩是我的妹妹．
The girl is my sister which is you are waiting.

1.They've already had a tourist of where their ancestors live.
2.Do you know the girl under the tree?
3.He got a computer which his parents buy him.
4.The boy whose dad is a doctor study very hard.
5.The classroom with a window open is mine.
6.I remember the day you left to Beijing.
7.My favourite place is Kunming,which is well known as Spring City
8.This school is the one my mother work in.
9.could you explain the reason why you're late?
10.The girl I'm waiting for is my little sister.