In the nineteenth century Charles Dickens, the English novelist, wrote excitedly （1)_____

In the nineteenth century Charles Dickens, the English novelist, wrote excitedly (1)_____ a stage-coach, pulled along by a team of horses, that could (2)_____ more than twenty miles of road within sixty minutes. To us in the twentieth century in (3)_____ man is able to move and to communicate with such rapidity, the (4)_____ of the stage-coach seems no speed at all. Aeroplanes fly many hundreds of miles in an hour; express trains (5)_____ four times the speed of the stage-coach; and even without (6)_____ we can, by wireless or telegraph, communicate within seconds with people on (7)_____ side of the' globe. The (8)_____ of these increased speeds are numerous. Business (9)_____ say, from Europe to America or to the Far East can save much time. (10)_____ a journey that would once have taken weeks, it (11)_____ now, by air, only twenty-four hours. Fruit, vegetables and other goods that would decay (12)_____ a long, slow journey can now be safely sent to far-distant places. Members of one family (13)_____ each other by vast distances can have conversations with each other by telephone (14)_____if they were all sitting in the same room.

Not ail the effects of speed, however, are (15)_____ People who are in the habit of using a motor car (16)_____ they want to move half a mile become physically lazy and lose the (17)_____ of enjoying a vigorous walk. Those who travel through a country at eighty miles a hour do not see much of the life of that country, of its people and animals and plants, as they flash (18)_____ They become so anxious about moving quickly from one place to another that they are (19)_____ able to relax and enjoy a (20)_____ journey.

A．for

B．in

C．at

D．of