Traffic congestion in Barcelona Barcelona is a big city with a huge amount of cars, trucks, motorbikes and so on, so, it has to bear a big traffic congestion every day because of the daily people commute. These daily commutes have led the city to be one with the worst air quality in the world. Besides, the huge tourism the city receives every summer, either by plane or by ship, increase the issue. Also, Barcelona has a very busy cruise and cargo ships port, and this doesn’t help at all. Some doctors and experts report that some breathing disorders is caused by the low quality of the air. This point has forced the authorities to take decisions in order to take care their citizens and change the way we move around. Therefore, although they built a lot of kilometers of bike lanes, these are not enough to absorb the huge amount of people moving from their houses to their jobs. Since most of us travel every day to work, and most of those jobs are out of our home-cities, we need to travel in public transport, in best case scenarios, or in ourself car. Anyway, I think as a result of all of the above, we have every day more and more vehicles traveling in our streets.

Grammar for modal verbs of speculation Hello everyone, I need to know if all of these statements are correct or if they can be written in a different way. Thanks for advanced. 1. It must have been about 6pm 2. If Mr Taylor had seen who did it, he could have stopped them 3. I heard someone knocking the door 4. Everyone was watching and then the fight started 5. In the end, they stopped fighting 6. He heard someone making a noise 7. I immediately lost sight of him 8. I was sure he couldn’t have been upset about the party 9. They must surely have been some children playing football in the neighbourhood 10. I came back at home