英语八下翻译,在线等,拒绝翻译器.1

1. My computer was turned on in one hour ago
2. Are these activities organized by the Computer Club? Yes.
3. Look! the TV has been turned on. Let's change to another channle.
4.They often use the computer to receive and send emails.
5. Even though it sounds good, I am afraid that I cannot agree with your views.