Question

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. They (have, not) __________ much memory and they (be, not) ___________ very powerful. Early computers were often quite expensive and customers often (pay) ________ thousands of dollars for machines which actually (do) ______ very little. Most computers (be) were separate, individual machines used mostly as expensive typewriters or for playing games.Times (change) __________. Computers (become) ______________ powerful machines with very practical applications. Programmers (create) ___________ a large selection of useful programs which do everything from teaching foreign languages to bookkeeping. We are still playing video games, but today's games (become) ____________faster, more exciting interactive adventures. Many computer users (get, also) ______________ on the Internet and (begin) ___________ communicating with other 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. Choose the correct alternative to complete the text. * A) has changed - were - didn't have - were not - paid - did - were - have changed - have become - have created - have become - have also got - have begun - have started - have evolved B) has changed - were - haven't had - were not - paid - did - were - has changed - have become - have created - have become - have also got - have begun - have started - have evolved C) have changed - were - didn't have - were not - have paid - did - were - have changed - have become - have created - have become - have also got - have begun - have started - have evolved D) has changed - were - didn't have - were not - paid - did - were - have changed - has become - have created - has become - have got also - have begun - have started - have evolved

Answer 1

Since computers were first introduced to the public in the early 1980's, technology has changed a great deal. The first computers were simple machines designed for basic tasks. They did not have much memory and they weren't very powerful. Early computers were often quite expensive and customers often paid thousands of dollars for machines which actually did very little. Most computers were separate, individual machines used mostly as expensive typewriters or for playing games.

Times have changed. Computers have become powerful machines with very practical applications. Programmers have created a large selection of useful programs which do everything from teaching foreign languages to bookkeeping. We are still playing video games, but today's games have become faster, more exciting interactive adventures. Many computer users have also got on the Internet and have begun communicating with other computer users around the world. We have started to create international communities online. In short, the simple, individual machines of the past have evolved into an international World Wide Web of knowledge.