I.Change the following sentences into the passive voice (chuyển sang câu bị động) People spend a lot of money on advertising every day Marry is cutting the cake with a sharp knife The police haven’t found the murderer yet They sold one of her paintings at $1,000 Tom was writing two poems They will hold the meeting before the May Day The chief engineer was instructing all the workers of the plan The boys broke the window and took away some pictures The teacher is going to tell a story 10 They may use this room for the classroom 11 You mustn’t use the machine after 5.30 p.m 12 After class, one of the students always erases the chalk board 13 She often takes her dog for a walk 14 Nobody has ever treated me with such kindness 15 No one believes this story 16 They use milk for making butter and cheese II/ Change the following sentences from active into passive form Yes – No questions 1.Do they teach English here? _ 2.Will you invite her to your wedding party? _ 3.Did the teacher give some exercise? _ 4.Is she going to write a poem? _ 5.Have they changed the window of the laboratory? _ 6.Is she making big cake for the party? _ 7.Has Tom finished the work? _ 8.Are the police making inquires about the thief? _ 9.Must we finish the test before ten? _ 10.Will buses bring the children home? _ Wh – question: 11 When will you the work? _ 12 How many days did she spend finishing the work? _ 13 How you spend this amount of money? _ 14 What books are people reading this year? _ 15 How did the police find the lost man? _ 16 Who looked after the children for you? _ 17 How long have they waited for the doctor? _ 18 What time can the boys hand in their paper? _ 19 Why didn’t they help him? _ 20 Who are they keeping in the kitchen? _ III Chuyển sang câu bị động 1.If you don’t break the rules, the teacher won’t punish you _ If Tom threw a party, I would refuse his invitation _ If the teacher had corrected the exercises, the students wouldn’t have made many mistakes _ If Mary didn’t accept his proposal, he might sell his house _ She won’t buy this car if it doesn’t appear any new features _ John sells his house because ghosts haunt it _ THE END PAST PERFECT & PAST SIMPLE ... 8.Are the police making inquires about the thief? _ 9. Must we finish the test before ten? _ 10.Will buses... question: 11 When will you the work? _ 12 How many days did she spend finishing the work? _ 13 How you... _ 18 What time can the boys hand in their paper? _ 19 Why didn’t they help him? _ 20 Who are they keeping