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14.2. поставьте глаголы в скобках simple past или present perfect i. since computers were first introduced to the public in the early 1980's. technology (change) a great deal. 2. the first computers (be) simple machines designed ior bacic tasks. 3. they (have, not) much memory and they (be. not) very powerful 4. early computers were often quite expensive and customers otten (pay) thousands of dollars for machines which actually (do ) very little. 5. most computers (be) separate, individual machines used mostly as expensive typewriters or for playing games. 6. times (change). computers (become) poweriul machines with very practical applications. 7. programmers (create) a lot of useful programs which do every- thing from teaching foreign languages to bookkeeping. 8. we are still playing video games, but today's games (become) faster and more interesting. 9. many computer users (get, also) on the lntemet and (begin) i communicating with other computer users around the world.

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14.2. поставьте глаголы в скобках simple past или present perfect i. since computers were first intr...

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