English prepositions exercise

  • Have you ever sold anything on the Internet?
  • I keep in touch with people?
  • How do you feel about the phone?
  • I enjoy chats with my friends.
  • I couldn’t live without it!
  • I spend a lot of time on the computer.
  • Computers are useful in my job.
  • I’m not interested in them.
  • I’m frightened of computers.