Rewrite the following sentences,using suggested words.
1.The internet disconnected.i tried to download a video. (when)
2.The construction of a new database will be finished.We'll call you. (When)
3.She saw the new car in front of the house.She was happy.(When)
4.I was doing my homework.My computer crashed.(When)
5.Emma won the first prize,so she said she was delighted.(Because)
6.I was really tired,so I went to bed earlier than usual.(Because)
7.Because I was really tired, I went to bed earlier than usual.(so)
8.Because Peter was sick.He didn't go to school yesterday.(so)