英文文法修正，拜託您幫忙—1?

Jobs was born in San Francisco in 1955.
賈伯斯出生於1955年的美國舊金山。
Jobs' biological mother was an unmarried graduate student. So, she decided to give her child to other people for adoption.
賈伯斯的生母是一位未婚的年輕研究生，她決定將孩子交由他人來領養。
Since she believed that adopters should have a college degree, she arranged everything for the child to be adopted by a couple of lawyers.
他的生母認為領養者都該有大學學歷，於是她安排好一切，讓孩子出生後能過繼給一對律師夫婦。
However, after the child was born, they decided at the last minute that they really wanted a girl.
當孩子出生後，他們卻又在最後一刻決定他們真正想領養的是一個女孩。
This is how Jobs came to his parents' home, who was on the waiting list.
就這樣，賈伯斯來到了候補名單上 ，他父母的家裡。
At first, his biological mother refused to sign the document again, since she found out that both new adopters did not have a university degree. A few months later, Jobs' new parents promised to let him go to university in future. Jobs' mother then agreed.
起初他生母發現他父母都沒有大學學歷，而拒絕再文件上簽名，幾個月後，賈伯斯的父母承諾將來一定會讓他上大學，他的生母才同意。

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簡化 version :
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Jobs was born in San Francisco in 1955.
Jobs' biological mother was an unmarried graduate student. So, she decided to give her child to other people for adoption. Believing that adopters should have a college degree, a couple of lawyers was chosen.
However, after the child was born, this couple decided that they really wanted a girl. This is how Jobs came to his adopter's home, who was on the waiting list.
At first, Jobs' mother refused to chose the new couple, as they did not have a university degree. She agreed a few months later, since these new parents promised to let Jobs go to university in future.

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* 文章只有少許 grammatical mistakes, 所以 改動不多;
有幫你把文章 連接 得好一點, 請再 prove read / 作修改 !

Some comments :-
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i) 賈伯斯-- Steve Jobs
ii) "and" 之前 不應用 "comma 豆號"

Believing that adopters should have a college degree, a couple of lawyers was chosen. (X, dangling participle)

a couple of lawyers = two lawyers
一對律師夫婦 = a lawyer couple

他們真正想領養的是一個女孩。
(decided to back off from the adoption as) what they actually wanted was a girl.


養父母 - foster parents
寄養家庭 - foster home

Steven Jobs was born in San Francisco in 1955, while his mother wasn’t married being a young, college graduate; and she decided let her expected child to be adopted by a family. In addition, she thought that the foster-parent should have high education and so trying her best effort to find a lawyer’s family for that purpose. As a matter of fact, that she gave birth to a boy; but the foster-parents really wanted a girl, as a result, he was only being putting on the waiting list. It was at first, her mother discovered that the foster-parents didn’t have university degree; and then refused to sign the related document. After a few months of negotiations, both of them agreed to send Jobs to college for education in the future. Yip