Wstaw brakujące wyrazy w czasie present perfect i past perfect
Twenty years ago few people realised that computers were about to become part of our daily lives. This short period of time has seen enormou changes , in business , education and public administration . Jobs which ........... ( take) weeks to complete in the past, are now carried out im minutes . Clerks who ..................( spend) all day copying and checking calculations are now freed from these tedious task . In offices , the soft hum and clicking of word processors ................ ( replace) the clatter of typewriters . Schoolchildren .........( become) as familiar with nardware and software as their parents .........(be) with pencils and exercise books . Computerisation of puplic records.........(enable) government departments to analyse the needs of citizens in detail . Some of us may wonder , however, whether life .......... (really/ improve) as a result of these changes . Many jobs ......( disappear) , for example , when intelligent machines ......( take) over the work. Employer complain that clerical staff .......( become) dependent on calculators and cannot do imple arithmetic. There are fears that governments......( not/do)
enough to ensure that personal information held on computers i really kept secret . Certainly , many people may now be wondering whether the spread of computers .....( bring) us as many problems as in ......( solve)
1 takes 2spendls 3 repleces 4 becomes 5 be 6 enables 7really 8 disapers 9