Write a letter to a friend declining an invitation to a party.

Here is a letter for Question 4:

Dear [Friend's Name],

Thank you so much for inviting me to your night party! It sounds like it's going to be a lot of fun, and I really appreciate you thinking of me.

Unfortunately, I won't be able to make it. Firstly, I have a major exam early the next morning, and I need to get a good night's rest and do some last-minute revision. Secondly, my younger sibling isn't feeling well, and I need to stay home to help my parents look after them. Lastly, I've already committed to helping my aunt with a family event that evening, which I can't reschedule.

I'm really sorry to miss out, but I hope you have an amazing time! Let's catch up soon.

Best,
[Your Name]