In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Twenty five years ago, few people realised that computers (1)___________ about to become part of our daily lives. This short period of time has seen (2)__________ changes, in business, education and public administration. Jobs which took weeks to complete in the past are now carried out in minutes. People who spent all day copying and checking calculations are now freed from these (3)_________ tasks. Students have become as familiar with hardware and software as their parents were with pencils and exercise books. Computerisation of public records has enabled government departments to analyse the needs of citizens in detail. Some of us may wonder, (4)_________, life has really improved as a result of these changes. Many jobs disappeared, for example, when intelligent machines took over the work. Employers complain that clerical (5)________ have become dependent on calculators and cannot do simple arithmetic.