Gap-filling: choose the suitable words from the box to complete the sentences. Advantage--enjoyable--concentrate--disruptive--radiation--submit--screen--downloaded--distract-- look. 1. A computer or laptop can be your powerful weapon and you can take______of the Internet to support your study. 2. Personal electronic devices which ____students from their class work are banned in most schools. 3. Many of the students prefer to_____their assignment papers to their lecturers online via e-mail or even Facebook. 4. If your smartphone rings while you are learning or working, you cannot______ on your study or work. 5. In this situation when you are annoyed and interfered with your device, it becomes______. 6. The_____ from electronics might harm your brain and cause permanent impact.