Your friend is going to stay in your apartment while you are away. Write a letter to your friend and include: Where the key is Instructions to look after the apartment What should he/ she do on the day of your return

Hi Thomas, I'm glad to hear that you will stay at my flat when I'm going back to my home town for a week . You can find the key at the security office , which is located beside the main entrance.I already told the security officer , you will come and collect my room key. One important job to do when you reach my room is to switch on the water pump else you cannot use the bathroom and kitchen.

Moreover

, another thing is to switch off the space heater when you go out because

this

equipment cannot power off automatically.Please close all the windows at night because some rats can enter the kitchen. You don't need to go early when I am back because I need to give some presents to you and your family.Feel free to stay at my apartment even though I am not there . Thank you for your help and we can meet very soon. All the best, Peter