I´ve been using this for about 10 years now and it´s a pretty flexible little worksheet. I use it to accompany a chapter we have to do with renting flats and houses. I normally start by going through the Estate agent´s key on the second page and then move to the first page which is used as a reading (for correcting pronunciation etc.) I then field questions on the vocabulary from the students after the reading for anything they don´t understand. The students are then told to work together in groups to find accommodation for the clients. Always follow up by asking them plenty of questions on their decisions. This can also be followed up by a quick "on-the-phone" role play, whereby students take it in turns to be the clients phoning the people in the adverts about accommodation to find out more about them.