WRITE THE VERBS IN PAST SIMPLE OR PRESENT PERFECT. Since computers were first introduced to the public in the early 1980's, technology _________ (change) a great deal. the first computers ________ (be) simple machines designed for basic tasks. ________ (have-not) very powerful. They Early computers were often quite expensive and customers often ______ (pay) thousands of dollars for machines which actually . ______ (do) very little. Most computers _____ (be) separate, individual machines used mostly as expensive typewriters or of playing games. Times ______ (change), computers ______ (become) powerful machines with very practical applications. Programmers _______ (create) a large selection of useful programs whitch do everything from teaching foreign languages to bcokkeping. We are Stiller playing video games, but today's games _______ (become) faster, more exciting interactive adventures. many computers users _______ (get-also) on the Internet and _____ (begin) communicating with o ther computer users around the world.
we _______ (start) to create international communities online. In short, the simple, individual machines of the past _______ (evolve) into an international World Wide web of knowledge. ayuda cofa
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Since computers were first introduced to the public in the early 1980's, technology changed a great deal. the first computers were simple machines designed for basic tasks. ________ (have-not) very powerful. They Early computers were often quite expensive and customers often payed thousands of dollars for machines which actually . did very little. Most computers were separate, individual machines used mostly as expensive typewriters or of playing games. Times have changed, computers became powerful machines with very practical applications. Programmers have created a large selection of useful programs whitch do everything from teaching foreign languages to bcokkeping. We are Stiller playing video games, but today's games have became faster, more exciting interactive adventures. many computers users also have got on the Internet and have begun communicating with o ther computer users around the world.
we started (start) to create international communities online. In short, the simple, individual machines of the past have involved into an international World Wide web of knowledge.