I‘m sorry
This morning I got/received <em>('to get/got' is overused - there are many better alternatives)</em> a class request from a new student, and this lead me to check and discover that I have already missed 7 classes and 5 students. I am really sorry - I was so busy in Shanghai and had no time to come here. From now on, I will not miss anyone who wants to learn or practise Chinese. Sorry again!
没关系!