You are studying English at a private language school attended by many international students. You are planning a surprise birthday party for a friend who has been feeling particularly sad and homesick.

Dear [Classmate's Name],

I hope this letter finds you well. I am writing to invite you to a surprise birthday party that I am organizing for our friend who has been feeling particularly sad and homesick.

Our friend has been struggling with homesickness lately, and I thought a birthday party would be a great way to lift their spirits and show them how much we care. Your presence would mean a lot to them and help make the celebration even more special.

The party will take place on [Date] at [Time] at the school's common room. It will be a casual gathering with music, games, and of course, a birthday cake. I am sure our friend will be pleasantly surprised and grateful for the effort.

If you could bring some snacks or drinks to share, that would be fantastic. It will add to the festive atmosphere and ensure that everyone has a great time. Your contribution, no matter how small, will be greatly appreciated.

I look forward to seeing you at the party and creating a memorable and joyous occasion for our friend. Let's come together to make them feel loved and supported during this challenging time.

Warm regards, [Your Name]