Tolong bantuin jawab we..Bsok mau di kumpul

4) the car engine was checked thorougtly by us

5)the computer was exported to seventy diferent countries by us
6)the meeting had canceled by them
7)the factory was opened at nine o'clock by us
8)two milion books were sender to american every year by the sender
9)all students the school Has invited by us
10)he had told to not to be late again by us
semoga bisa membantu maaf klo salah