第一部分：从所提供的选择项中选择一个最佳选项填入短文内。
    My dear friends, you can enjoy a very comfortable life just by pressing some buttons.     1    your fingers you can change to any TV channel you like from a distant soft sofa. Gently     2    the buttons on the remote control of the air-conditioner, yon can enjoy the coo] air in the     3    summer or warm air in the cold winter.
    However, there is one kind of     4    that you cannot ignore. That is with a computer. As soon as your fingers touch the keyboard of the computer, the     5    world will unfold (展现) in front of you. Clicking the mouse, you can find anything you want on the Internet.     6    , you can watch classical movies; you can get the newest information about the military, politics or economy and so on; you can     7    exciting and interesting computer games; and you can chat with your friends or make new friends with people all over the world. All of these only require a     8    of the mouse or a strike on the keyboard with your fingers, and then you can surf (冲浪)     9    much as you like in the magic Internet sea.
    My dear friends, facing such great joys, can you still be indifferent (无动于衷)? Then     10    , move your fingers, enter the wonderful digital world (数字世界), then you can enjoy the entire world and find endless pleasure just with your fingers.