Band 9: You are planning a surprise birthday party for your best friend and need to coordinate with their family. Write a letter to your friend's sibling asking for their help. You should include: - The date, time, and location you have in mind for the party. - A request for them to discreetly gather your friend's preferences (food, music, guests). - Suggestions on how they can help with the preparations without revealing the surprise.

Hi Jack,

I hope you’re doing well. As you know, your sister Jenny’s birthday is coming up this Saturday, May 1st, and I’m planning to throw a surprise party for her.

I was wondering if it would be possible to host it at your place this Saturday evening around 6 PM. It would be absolutely amazing if we could set everything up in your backyard, especially since you have that great barbecue grill!

To get things ready, could you please lend me a hand with moving a table and six chairs out to the yard? I’ll take care of bringing some flowers and other decorations to brighten up the space.

Most importantly, we need to keep this a complete secret until she gets back home from work. Could you make sure to move all the party gear outside only after she leaves for the day? Also, please act natural and don’t let slip anything about our plan!

Let me know what you think of this idea, and if there’s anything else you need from my end.

Warm regards,

Soojin