A quick note on the two answers above: It's less common in the UK to shorten 'because' to 'cause' or 'coz', unless in an extremely relaxed social situation ie a text or instant message to a close friend.

It would be grammatically correct but I would change 'though' for 'although'.

beijing

I’d like to go to a beautiful place. I think it would be Beijing. Beijing is not only our capital city, but also a famous city with long history and wonderful culture. Beijing is also China’s political and cultural center. There’re many old places of great interest, such as the Great Wall, the Summer Palace, the Forbidden City, the Temple of Heaven, and Tiananmen Square. Once you see Tiananmen Square, you will think of Beijing. It has been the symbol of Beijing since 1949.

Beijing

I’d like to go to a beautiful place. I think it would be Beijing. Beijing is not only our capital city, but also a famous city with a long history and wonderful culture. Beijing is also China’s political and cultural center. There are many old places of great interest, such as the Great Wall, the Summer Palace, the Forbidden City, the Temple of Heaven, and Tiananmen Square. Once you see Tiananmen Square, you will think of Beijing. It has been the symbol of Beijing since 1949. 

You're English is fantastic here. The sentences make sense but could perhaps need shuffleing.
For example, the first two sentences 'I’d like to go to a beautiful place. I think it would be Beijing.' would sound better as: 'I'd like to go to Beijing as it's a beautiful place.' 

 

My holiday

I'm a senior student of Qingdao Technology University from in China. It's summer vacation and I'm interning at an accounting firm. What I need to do is chiefly transacting the certificate for business license, organization code certificate and tax registration form etc. It's challenging but I feel (that) I have learned a lot. And the most important thing is, I have learnt to communicate with all sorts of people.
I made full use of my holiday and although I didn't go travelling, I was just felt as happy at the company.

Great vocabulary! 
Just remember to leave spaces after full stop's/periods (.) and commas (,) and to capitalise 'I' 

It's 'Get on my wick' which means 'you're annoying' or 'you get on my nerves'. It's a colloquial term that is usually used in London. I grew up in Hampshire and would never use it, so I'd steer clear if I were you. Using colloquial terms that aren't enshrined in your vocabulary from birth always sounds strange. 'getting on my nerves' works best

Another rainy day

In the morning when I left the hourse sky was full of dark clouds. I boarded train. As much as I was getting close to my destination the shower outside became heavier and heavier. When I got down from train. I saw lots people were waiting at the station to stop the rain. Station stairs was fully jam with people. People who want to leave the station as soon as possible was facing very difficulty. Somehow I come out from station and catch a riksha to destination as rain was still going on. Finally I reached. :)

When I left the house this morning the sky was full of dark clouds. I boarded the train. As I got closer to my destination the shower outside became heavier and heavier. When I got down from train I saw lots people were waiting at the station for the rain to stop. The station stairs were jammed full with people. People who wanted to leave the station as soon as possible were facing difficulty. Somehow I managed to get out of the station and caught a riksha to my destination as rain was still going on. 

Good use of colloquial terms such as 'jam', you just used it in the wrong way!

- When talking about the past, remember to use the past participle ie 'want' becomes 'wanted' 

If my life could restart, I would like to do ...

I am 23 years old but still a sophomore, therefore I am older than my classmates. I want to be at my other classmates age like usual but life can't restart. I have done many wrong things in the past, but i don't regret anything. I know life is full with right and fault,when i look back,those things is not as much important as it is before.
but here i just suppose my life can restart
If my life could restart, I would join up after highschool graduation and not work.
If my life................, I would choose another high school, because the school i went to was not good. The students were unfriendly and the teachers were not responsible. I'd like to be diligent in high school.
If my life could.........., I would like to cherish my love in high school, I wouldn't choose to give up easily.
If .........................., I would like to be diligent in my first semester of university life.
Finally, I don't regret what i did in the past, I know that what I do now and what I did in the past will play a important role in my bright future.


Good vocabularly and fairly good use of past tense! Here are a gfew pointers:
- Remember to put spaces after full stops/ periods (.) and commas (,)
- Capitalise I's 
- Watch out with using the present tense when talking about the past ie. is - are 
 
I would like to cherish my love in high school - Love of? 

Erzurum

Erzurum is one of the cities of Turkey. This city is located in the east of Turkey. The weather is very cold in winter, reaching lows of minus 55 just two years ago, but in the summer it is so nice with fresh air. The city is very good for winter games because the whole of the mountain is covered with snow. This city is also interesting for archaeologists owing to its heritage sites. Erzurum also has a variety of food, for instance, Doner Kabab and Çiğ Köfte.
 
I recommended that everybody should visit this city.