Ответ:
1) Dad said the car had been filled by him.
2) At 9 o'clock yesterday Sam's homework was still being done by him.
3) Julian friend's humiliation hasn't been noticed by him.
4) A new computer gadget has been invented by the engineers recently.
5) A new educational online programme is being advertised by them now.
6) When Lulu entered the classroom, the test was being handed by the teacher.
7) The principal's report has been discussed by us.
8) Look, the latest terrorist attack is being broadcasted on Channel Four.
9) Tim said the cord mouse was still being used by him as he was used to it.
10) Bess told us all the wedding invitations had already been prepared by her.