請問用英文complete sentence去答this question,應如何回答呢?

Your answer is Not OK ( We call a person who writes about or studies history is historian).

Mistake: A complete sentence should have one main verb only. In your answer, you have to main verbs ( call and is) . Therefore, you should change the sentence like this:

1. We call a person who writes about or studies history a historian. or,
2. The person who writes about or studies history is called historian.

On the other hand, you may just answer the question directly, like this:
1. The person is called historian. (because you don't need to repeat the question all the time) Good Luck!!

2007-08-08 18:43:36 補充：
It should be "two main verbs" ,not "to main verbs" in line 4.

What do we call a person who writes about or studies history?

We call this person a Historian, who he writes or studies about history.

英文來說, 必需先寫主體, 然後加序述. 尤其是正在回答問題時.
正如問題一樣:
問: What do we call a person........
答: We call this person .....

2007-08-08 18:45:45 補充：
如像你答: We call a person who writes about or studies history is historian. 確是怪怪地

The person who writes about or studies history is a historian.
We call a person who writes about or studies history a historian.
A historian is a person who writes about or studies history.

All the above are OK.

A) The person who writes about or studies history call Historian.
B) Historian writes about or studies history.

岩呀~可能平時好少咁答所以你覺得怪姐....

A historian is a person who writes about or studies history.