EXERCISE 1:
1.My father waters this flower every morning.
→ This flower is watered by my father every morning.
2.John invited Fiona to his birthday party last night.
→ Fiona was invited by John to his birthday party last night.
3.Her mother is preparing the dinner in the kitchen.
→ The dinner is being prepared by her mother in the kitchen.
4.We should clean our teeth twice a day.
→ Our teeth should be cleaned by us twice a day.
5.Our teachers have explained the English grammar.
→ The English grammar has been explained by our teachers.
6.Some drunk drivers caused the accident in this city.
→ The accident was caused by some drunk drivers in this city.
7.Tom will visit his parents next month.
→ His parents will be visited by Tom next month.
8.The manager didn’t phone the secretary this morning.
→ The secretary wasn't phoned by the manager this morning.
9. Did Mary make this beautiful dress?
→ Was this beautiful dress made by Mary?
10.I won’t hang these old pictures in the living room.
→ These old pictures won't be hung by me in the living room.
11.The German didn’t build this factory during the Second World War.
→ This factory wasn't built by the German during the Second World War.
12.The Greens are going to paint this house and these cars for Christmas Day.
→ This house and these cars are going to be painted by the Greens for Christmas Day.
13.Ann had fed the cats before she went to the cinema.
→ The cats were fed by Ann before she went to the cinema.
14.The students have discussed the pollution problems since last week.
→ The pollution problems have been discussed by the students since last week.
15.Have the thieves stolen the most valuable painting in the national museum?
→ Has the most valuable painting been stolen by the thieves in the national museum?
16.Some people will interview the new president on TV.
→ The new president will be interviewed on TV by someone.
17.How many languages do they speak in Canada?
→ How many languages are spoken in Canada?
18.Are you going to repair those shoes?
→ Are those shoes going to be repaired ?
19.He has broken his nose in a football match.
→ His nose has been broken in a football match.
20.Have you finished the above sentences?
→ Have the above sentences been finished?