2. 外语
  3. There can be no doubt that the computer revolution has touched【C1】______ every person in the country【C2】______ some way or other

There can be no doubt that the computer revolution has touched【C1】______ every person in the country【C2】______ some way or other

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问题      There can be no doubt that the computer revolution has touched【C1】______ every person in the country【C2】______ some way or other.
     【C3】______ can there be any doubt that it has brought【C4】______ improvements in productivity and efficiency. Indeed, there are many tasks【C5】______ by computers that could not be done without them, and we have reached the point that the benefits o1【C6】______ are taken for【C7】______ .
     Having accepted that computers are here to stay, what is the【C8】______ ? The most obvious answer is【C9】______ increased efficiency, less people are needed and the loss of jobs, particularly in the service industries, has been enormous, with more job losses yet【C10】______ .
    【C11】______ , on a more insidious note, many users【C12】______ how computers have introduced【C13】______ to their business; If computers are soon a boon, how do we cope when something goes wrong?
     Computers have many uses, office systems to stock or production control, aided design or manufacturing. In many instances,【C14】______ systems can quickly be introduced to ensure some【C15】______ of the business; but【C16】______ many cases if the computer is down, so is the business
     The most probable causes of interruption in the past have been 【C17】______ damage or breakdown, and these can usually be dealt with expeditiously. However, in recent times the exposure causing most concern【C18】______ insurers have been theft.
     【C19】______ the problem was the theft of PCs, and because most of these were based in offices which had not been targeted by thieves in the past, and thus had relatively poor security, losses【C20】______ very quickly.
【C12】
选项 A、isn’t realizing
B、haven’t realized
C、didn’t realize
D、don’t realize
答案B
解析 本句考查时态，结合整句显然用完成时态。
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