Ответ:

  1. I never text my friends at school. (a)
  2. I often surf the Internet for school projects. (f)
  3. It’s good to chat online with my friends. (c)
  4. I often download songs onto my smartphone. (e)
  5. I don’t usually talk on the phone. It’s expensive. (b)
  6. My parents send emails, but I don’t! (d)