Ответ:

Hi Lisa,

I'm having a birthday party next Friday at my house.

Would you like to come? It'll be fun! Lots of people from my school are coming. You know some of them - Petra, Karl, Marco and Rob. Can you bring some lemonade and crisps?

My house is behind our school, 6 Greenfield Avenue. It's right next to the park and it's got a blue front door.