1 . Complete the dialogue with the correct form of the words and phrases below.

downtown	jam	suit	greenhouse gases
public transport	complain	anger	get stuck in traffic

Martin: Good morning, Mary. How do you always manage to the office before me?
Mary: Morning, Martin. Well, I cycle so I don’t     1    .
Martin: Well, I don’t cycle but I do take     2    . It’s not quite as fast as cycling but it gets me     3     much quicker than if I take my car.
Mary: Public transport is also a good way to help reduce the level of     4     in our atmosphere. If more people take the bus and train, it would be better for us all.
Martin: I know so many people who     5     about traffic     6     and air pollution, but     7     cannot solve the problems.
Mary. That kind of attitude is common but I think more and more people are beginning to do something which     8     them and protect the environment.