Correct the underlined mistake.

Computers have (1)bring a lot of changes in many fields. Jobs (2)where used to take weeks to (3)finished are now carried out in minutes. Employees (4)which spend all day (5)copy and checking fell now free from all these boring tasks. School children (6)has became as familiar with computers as their parents were with pencils and books

1) brought

2) where не нужно

3) be finished

4) who

5) copying

6) have became