Do the preparation exercise first. Then read the text and do the other exercises.
What do you use computers for? Tell us about it!
I use my computer to learn english and doing my home works.
I use my computer to study English and math, I love both of them.
I use computer to learn English, do my home works, and to send messages(or emails)to my friends and teachers :) I sometime use this one to play online, but no often!