【简答题】A.Dirty water and rubbish were thrown into the street. B.A deadly disease was spreading. C.There were many rats and flies. D.Many country people started to move into the city.
【简答题】A.They were caused by the dirty smoke from burning coal. B.They were so thick that you could only see your own hand in front of you. C.They are still characteristic of London as 'London Particulars'. ...