31.   To take the class, you have to be able to use a computer.

32.   Traditionally, one powerful computer is used as a dedicated server using all its power and memory to run the network.

33.   Whether the class moved to a special room in order to use the computer.

34.   Before learned how to use a computer, would fumble about hying to work out which buttons to push.

35.   I mostly use my computer for word processing.

36.   Anyone can use a computer.

37.   No-one could use the computer unless they had a password.

38.   They used a computer to plot the movements of everyone in the building.

39.   He wanted to use computers to automate the process.

40.   They use the computer to catalog books.