Chinese Revision, any help GREATLY Appreciated

These are the some of the questions from previous years exams. If anyone could give me any pointers that would be great. Thank you!

English into Chinese
1, When I got to my friend's home, she and her friend had already left by train.
我倒去我的朋友的家的时候她和她的朋友一起早已到火车去了。

2, I bought a very good Chinese-English Dictionary in Beijing two years ago, and have used it every day.
我前年在北京买了中英字典我就每天的用。

3, Have you ever been to the park near the hospital?
你去过医院附近的那个公园吗?

4, He has been learning Japanese by himself.
他学了日本。他没有日本老师，是自已学的。

5, I seem to have heard you mention such a teacher.
我好象听你说过这个老师。

6, Can you tell us a bit about China and Chinese history?
能不能说说给我们听听中国和中国历史?

7, To my surprise they went to America last week by boat.
没想到他们上星期坐船去美国。

8, I haven't spoken Chinese for over ten years, I've probably forgotten it all.
我十年没说中文。我大概都忘了。

9, The teachers in London University are extremely good, they explained every word and every sentence very clearly.
伦敦大学老师好极了。他们清清楚楚地介绍每个字每句

10, He is so stupid, he can't even say where his home is.
他怎么笨得连他家在哪儿都不知道。

11, He started to write the book as soon as he got married.
他一开始写这本书就他结婚。

12, I can't make out the meaning of the book, could you please explain it in English
我看不懂这本书的意思请你用英文介绍。

13, We all like Chinese food as much as you do.
我们跟你一样喜欢中国菜。

14, While I was watching television, my parents were cooking dinner for me.
我看电视看着呢我的父母亲正在做晚饭给我呢。

(no subject)

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