Speaking: ac disadvantages (Parts 3 and 4) 1 Someone has suggested that a coffee machine should be installed in your classroom. Listen to some students discussing the suggestion and complete the sentences. 1 I think it's a ............ I like coffee. 2 But one........... is the cost. Coffee machines are expensive, aren't they? 3 And think about the mess, with paper cups everywhere. That might be a 4 But coffee wakes you up. So being able to get a coffee when you are tired is a big 5 And another ............ is that it will make the classroom feel more sociable. 6 I think the main ........... is that it would encourage people to drink too much coffee. That isn't good for you.​