在回答一些「What does I refer to?」之類的問題時，是否須在答案後加「's」？

答 中文或英文 comprehension 一定要了解 " 上文下理" ,
一定要知道 "問什麼 ? ", 不一定答句前寫 It refers to -----,
If 問是-----" What does it refer to ?"
通常是-----" It refers to XXXXX "
XXXXX不一定是人物。
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For example :
一篇電腦素描報告 (我最近答的, 我會之後給你 link)
http://hk.knowledge.yahoo.com/question/?qid=7007121700136
What does it refers to ?
我會答:
It refers to the patient who has a tumor about 0.8 cm
in his/her liver and a lesion in his/her adrenal.
亦可答：
The report shows that the patient has a tumor about
o.8 cm in his/her liver and a lesion in his/her adrenal.
__________________________________________
Is it helpful ?

It refers to Peter 是對的。不需要加 's. 因為加 's代表Peter的東西，而你這一句卻沒有這個意思。要知道 's 有兩種用法︰(1)show's possesion, (2)contraction for "is"

for example:
(1) show's possesion--- Peter's dog (Peter 的狗)
Mary's pencil (Mary 的鉛筆)

(2) contraction for "is" -------He's a boy (他是一個男孩子)
She's a child (她是一個小朋友)

希望可以幫到你