Объяснение: 1. The teacher asked them why that computer didn't work.
2. Her mother asked her what she was copying and pasting from the Net.
3. His father asked if he had installed the antivirus he had bought the day before.
4. Her mother asked if she hadn't installed the previous one
5. Farrukh asked what the URL of the new site he has told him about was.
6. The boy asked if she had sent her an e-mail.
7. The teacher asked if she had downloaded the necessary files the previous week.
8. Rakhim asked if she had been sending mails when the headmaster arrived.
