chuyển các câu sang thể bị động
----- Nội dung dịch tự động từ ảnh -----
77.The boys made a fire by their camp.
78.They built this house more than one hundred years ago.
79.Every year Viet Nam exports millions of tons of rice.
80. The publisher published his book in 1996.
81. They repaired my desk during the weekend.
82.Nobody saw her at the party last night.
83. The government has not changed the regulation.
84.She didn't introduce me to her mother.
85.Someone is cutting the grass now.