1) When are they going to teach their subjects ?
=> When are their subjects going to be taught?
2) He isn't making cakes
=> Cakes isn't being made by him
3) They were painting the wall at the time
=> The wall were being painted by them at this time
4) People play football all oven the world
=> Football is played all over the world
5) Did they build the house in 2012?
=> Was the house built by them in 2012?
6) They have built three new factories this years.
=> Three new factories have been built by them this years
2) Passive( Chuyển sang câu bị động )
1) When are they going to teach their subjects ?
--> When are their subjects going to be eaten ?
2) He isn't making cakes
--> The cakes aren't being made by him.
3) They were painting the wall at the time
--> The wall was being painted at the time.
4) People play football all oven the world
--> Football is played all over the world.
5) Did they build the house in 2012?
--> Was the house built in 2012?
6) They have built three new factories this years.
--> Three new factories have been built this year.
