quickly in the mountains 1.they fail to realize how dangerous avalanches can be 2.typical of conditions resulting in avalanches 3.the ice between different sections of snow melts 4.measures are taken to prevent serious avalanches 5.they stay on the offieially approved slopesРAbout 70million Americans…lose weight 1.To work hard 2.both A and B(they want to look attractive/keep fit)3.Americans need losing weight 4.diet books are not always effective 5.there is not a sure way of losing weight as yetРWashington Irving 1.a great writer who was essful in his own country and other parts in the world 2.Irving’s work was not only popular, but also of high literary quality 3.He spent very little time working as a lawyer 4.Becaues his parents were not aristocratic 5.It had almost no effect on his life