* Câu bị động thì quá khứ đơn: S + was/were (not) + v3/ed + (by+O)
------------------------------------------------------------------------------
${6.}$ The victim was taken to the hospital after the accident.
${7.}$ My lost suitcase wasn't found by the police.
${8.}$ Mr. Smith's house was broken into when they were out.
${9.}$ The Great Wall of China was built by soldiers, common people and criminals.