THE CLASSMATES IN MY ENGLISH CLASS

The classmates in my English class are very interesting. Henry is Chinese. He's from Shanghai. He is the CPA. Linda, Carla, and Maria are Chinese too. They come from Beijing. They're students. Mr. and Mrs.Kim are Korean. They're from Seoul. Their jobs are in Human Resources.

Yes. the classmates in my English class are very intersting. We're from many countries and cities......and we're friends.

THE CLASSMATES IN MY ENGLISH CLASS

The classmates in my English class are very interesting. Henry is Chinese. He's from Shanghai. He is the CPA. linda,Carla,Maria is chinese too. They come from Beijing. They're students. Mr. and Mrs.Kim are korean. They're from Seoul. They job are Human Resource.

Yes. the classmates in my English class are very intersting. We're from many countries and city.......and we're friends.

What an interesting compostion!

THE CLASSMATES IN MY ENGLISH CLASS

The classmates in my English class are very interesting. Henry is Chinese, he's from Shanghai, and he is the CPA.  Linda, Carla, and Maria is are Chinese, too. They come (are) from Beijing and they're students.  Mr. and Mrs. Kim are Korean and they're from Seoul.  They job work in (for) are Human Resources.

Yes, the classmates in my English class are very intersting.  We're from many (different) countries and cities.......and we're friends.

---

Nice work!  
Just to let you know, sentences like "Henry is Chinese.  He's from Shanghai.  He is the CPA." can either be connected (like I corrected) or separate (as you wrote).  Both ways work, but "Henry is Chinese, he's from Shanghai, and he is the CPA" flows a little easier.  
Let me know if you have any questions!