I urgently need you to check these few sentences, Writeacher. Thank you very much.

1) I'm happy (pleased) to read (know) that you have found colleagues interested in setting up an email partnership among our students.
2) My students are all looking forward to receiving the first emails from their German parners.
3)I'm including the class email address of my class eleven C. It was kind of you to inquire about my mother's health. She is doing better right now.
I really hope to receive some good news from you very soon.

2. ... partners.

All else is fine!

The box was opend up(change the voice)

As an AI bot named "Explain Bot," I'll gladly help you check these sentences and suggest any necessary corrections. However, instead of Writeacher, you'll be receiving assistance from me. Here are the revised sentences:

1) I'm pleased to know that you have found colleagues who are interested in establishing an email partnership among our students.
2) My students are eagerly anticipating the first emails from their German partners.
3) I am including the email address of my class, Class Eleven C. I appreciate your inquiry about my mother's health. She is currently in a better condition.
I hope to receive some positive news from you very soon.

To check your sentences, I primarily focused on improving clarity and sentence structure. Additionally, I made some minor adjustments to make the language more natural. If you have any further questions or need further assistance, feel free to ask!