Поместить в конец слова хвостики по опорным словам yes, no 1. tom, you havent gota rubber, ) 2.they were hot happy, ) 3.max wont take his exam tomorrow, ) 4.they arent your friends, ) 5.nelly, this is not your project, ) 6.they didnt come by car, )

1. tom, you haven't got a rubber, have you? 2. they were hot happy, weren't they? 3. max won't take his exam tomorrow, will he? 4. they aren't your friends, are they? 5. nelly, this is not your project, is it? 6. they didn't come by car, did they?

I. since computers were first introduced to the public in the early 1980's. technology (has changed) a great deal. 2. the first computers (were) simple machines designed for bacic tasks. 3. they (did not have) much memory and they (were not) very powerful. 4. early computers were often quite expensive and customers otten (paid) thousands of dollars for machines which actually (did ) very little. 5. most computers (were) separate, individual machines used mostly as expensive typewriters or for playing games. 6. times (have changed). computers (have become) powerful machines with very practical applications. 7. programmers (have created) 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 (have become) faster and more interesting. 9. many computer users (have also got) on the lntemet and (begun) communicating with other computer users around the world.