Find out and correct ten verb-form mistakes in the following paragraph

English as a Second Language English Vocabulary, Grammar and Idioms
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Hello teachers,

Please correct my mistake if I was wrong in the exercise below.
Many thanks.

Find out and correct ten verb-form mistakes in the following paragraph
Hardly a week goes by without some advance in technology that would seem incredible 50 years ago. Over the past 20 years computers are completely revolutionizing our lives. Yet we can expect the rate of change accelerate rather than slow down within our lifetimes. The next 25 years sees as many changes as is witnessed in the past 150. These developments in technology are bound to have a dramatic effect o the future of the work. By 2010, new technology will revolutionize communications. People will be transmitting messages down telephone lines that previously would be sent by post. A postal system which is essentially the same since the pharaohs will virtually disappear overnight. Once these changes are introduced, not only postmen but also clerks and secretaries will be vanished in paper-free society. All routine tasks they perform will carry on a tiny silicon chip. As soon as this technology is available, these people will be as obsolete as the horse and cart after the invention of the motor car. One change will make thousands, if not millions, redundant.

  1. Hardly a week goes by without some advance technology that would have seem incredible 50 years ago.
  2. Over the past 20 years computers have completely revolutionizing our lives.
  3. Yet we can expect the rate of change to accelerate rather than slow down within our lifetimes.
    4.5. The next 25 years will see as many changes is have witnessed in the past 150.
  4. By 2010, new technology will be revolutionized communications.
  5. People will be transmitting messages down telephone lines that previously would have been sent by post.
  6. A postal system which has essentially been the same since the pharaohs will virtually disappear overnight.
  7. Once these changes are introduced, not only postmen but also clerks and secretaries will vanish in paper-free society.
  8. All routine tasks they perform will be carried on a tiny silicon chip.
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Hardly a week goes by without some advance in technology that would have seemed incredible 50 years ago. Over the past 20 years computers have completely revolutionized our lives. Yet we can expect the rate of change to accelerate rather than slow down within our lifetimes. The next 25 years will see as many changes as have been witnessed in the past 150. These developments in technology are bound to have a dramatic effect on the future of work. By 2010, new technology will have revolutionized communications. People will be transmitting down telephone lines messages that previously would have been sent by post. A postal system which has been essentially the same since the pharaohs will virtually disappear overnight. Once these changes are introduced, not only postmen but also clerks and secretaries will vanish in a/our paper-free society. All the routine tasks they perform will be carried on a tiny silicon chip. As soon as this technology is available, these people will be as obsolete as the horse and cart after the invention of the motor car. One change will make thousands, if not millions, redundant.

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Dear teacher Mister Micawber,

Thank you so much!!!

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Hardly a week goes by without a technological advance that seemed incredible 50 years ago. In the last 20 years, computers have completely revolutionized our lives. But we can expect change to accelerate rather than slow down in our lifetime. There will be as many changes in the next 25 years as there have been in the last 150. These technological developments will have a dramatic impact on the future of work. By 2010, new technology will revolutionize communications. People will be transmitting messages over telephone lines that were once sent by mail. A postal system that has been essentially unchanged since the days of the Pharaohs will disappear virtually overnight. Once these changes are in place, not only will letter carriers disappear, but so will office workers and secretaries in the paperless society. All the routine tasks they perform will be stored on a tiny silicon chip. Once this technology is available, these people will be as superfluous as the horse and buggy were after the invention of the automobile. A single change will make thousands, if not millions, redundant.

  1. Hardly a week goes by without some advanced technology being introduced that would have been unbelievable 50 years ago.
  2. In the last 20 years, computers have completely revolutionized our lives.
  3. And we can expect change to accelerate rather than slow down in our lifetime.
  4. The next 25 years will see as much change as the last 150 years.
  5. By 2010, new technology will revolutionize communications.
  6. People will be transmitting messages over telephone lines that used to be sent by mail.
  7. A postal system that has remained essentially the same since the Pharaohs will disappear virtually overnight.
  8. Once these changes are in place, the paperless society will see the disappearance not only of letter carriers, but also of clerks and secretaries.
  9. All the routine tasks they perform will be stored on a tiny silicon chip.