Introduce Myself

My name is Li Zewei and I am from China. Now I live in Tianjin, China. I want to study English, especially spoken English. And I am glad to teach you Mandarin.

In English it is not good practise to begin a sentence with '.And' 

You can try saying the sentence like this instead: 

I want to study English, especially spoken English and I would be happy to teach you Mandarin. 

加油！

Introduce Myself

My name is Li Zewei and I am from China. Now I live in Tianjin, China. I want to study English, especially spoken English. And I am I would also be glad to teach you Mandarin.

Welcome to italki! Good luck in your English studies. :)