China
As we all know, China is an ancient civilization with profound cuture. It's [Sentences start with a capital, and when abbreviating 'it is' the form is 'it's' with an apostrophe after the 't'] heard that it's [same as before - 'it is' is shortened down to 'it's'] very difficult to study Chinese. But [In English we put a space after a full stop, or any form of punctuation] it is so amazing to learn ancient poems, and [the only words that are capitalised after a comma (or any punctuation other than a full stop, question mark or exclamation mark) are names and the pronoun 'I'] we can see magical classic books. Welcome to China and learn more about Chinese culture, I can teach you Chinese and at the same time I can practice my English. The reason [as you are explaining <em>why</em> you chose to study English you give a 'reason'] I study English is to get another key to the other world!