I/ Change the following sentences from active into passive form.( làm hộ mình từ câu 20 đến câu 30 nha mình cảm ơn) 1.Somebody has taken my briefcase. 2.The teacher returned our written word to us. 3.She had finished her report by soon. 4.The mad dog bit the little boy. 5.The police have arrested five suspects. 6.The doctor ordered him to take a long rest. 7.Lightening strucsk the house. 8.A group of students have met their friends at the rail way station. 9.They didn't allow Tom to take these books home. 10.The teacher won't correct exersices tomorrow. 11.Marry há operated Tom since 10 o'clock. 12.This is the second time they have written to us about this. 13.Mr. Smith has taught us French for two year. 14. they didn't look after the children properly 15.Nobody swept this street last week 16.People drink a great deal of tea in England 17.People speak English all over the world 18.Tom was writing two poems 19.she often takes her dog for a walk 20.They can't make tea with cold water 21The chief engineer was instructing all the workers of the plan 22.Somebody has taken some of my book away 23.They will hold the meeting before the May day 24.The have to repair the engine of the car 25.The boys broke the window and took away some pictures 26.They may use this room for the classroom 27. People spends a lot of money on advertising everyday 28.The teacher is going to tell is story 29.Marry is cutting the cake with a sharp knife 30.The children looked at the women with a red hat