Bài tập về câu bị động
1. The German didn’t build this factory during the Second World War.
2. The Greens are going to paint this house and these cars for Christmas Day.
3. Ann had fed the cats before she went to the cinema.
4. The students have discussed the pollution problems since last week.
1. 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.
2. The Greens are going to paint this house and these cars for Christmas Day.
=> This house hand these cars are going to be painted by the Greens for Christmas Day
3. Ann had fed the cats before she went to the cinema.
=> the cats had been fed by Ann before she went to the cinema
4. The students have discussed the pollution problems since last week.
=> The pollution problems have been discussed by the students since last week