Change the voice.
1James broke another window. / Another window ............... by James.
Wrong!
The past simple active verb "broke" becomes the past simple passive form "was broken".
2I know the answer. / The answer ............... to me.
Wrong!
The present simple active verb "know" becomes the present simple passive form "is known".
3She did not accept the invitation. / The invitation ............... by her.
Wrong!
The past simple negative active verb "did not accept" becomes the past simple negative passive form "was not accepted".
4They have sold their house. / Their house ............... .
Wrong!
The present perfect active verb "have sold" becomes the present perfect passive form "has been sold" with singular "house".
5Ancient Indians knew the science of ship-building. / The science of ship-building ............... to ancient Indians.
Wrong!
The past simple active verb "knew" becomes the past simple passive form "was known".
6She showed me a nice portrait. / I ............... a nice portrait.
Wrong!
The past simple passive form of "show" is "was shown" when "I" becomes the subject.
7My mother knits sweaters. / Sweaters ............... by my mother.
Wrong!
The present simple active verb "knits" becomes the present simple passive form "are knitted" with plural "sweaters".
8He bought some land and two horses. / Some land and two horses ............... by him.
Wrong!
The past simple passive form "were bought" agrees with the plural subject "some land and two horses".
9We will not tolerate this. / This ............... by us.
Wrong!
The future negative active form "will not tolerate" becomes the future negative passive form "will not be tolerated".
10She has written two books. / Two books ............... by her.
Wrong!
The present perfect passive form "have been written" agrees with the plural subject "two books".
11They made a lot of profit. / A lot of profit ............... by them.
Wrong!
The past simple active verb "made" becomes the past simple passive form "was made" with singular "profit".
12He owns six apartments. / Six apartments ............... by him.
Wrong!
The present simple active verb "owns" becomes the present simple passive form "are owned" with plural "apartments".
13He donated all his money to charities. / All his money ............... to charities.
Wrong!
The past simple active verb "donated" becomes the past simple passive form "was donated" with singular "money".
14He has won a jackpot. / A jackpot ............... by him.
Wrong!
The present perfect active verb "has won" becomes the present perfect passive form "has been won".
15The police have arrested the smugglers. / The smugglers ............... by the police.
Wrong!
The present perfect active verb "have arrested" becomes the present perfect passive form "have been arrested" with plural "smugglers".
Done.
Score: 0/15
Answers
- James broke another window. / Another window was broken by James.
- I know the answer. / The answer is known to me.
- She did not accept the invitation. / The invitation was not accepted by her.
- They have sold their house. / Their house has been sold .
- Ancient Indians knew the science of ship-building. / The science of ship-building was known to ancient Indians.
- She showed me a nice portrait. / I was shown a nice portrait.
- My mother knits sweaters. / Sweaters are knitted by my mother.
- He bought some land and two horses. / Some land and two horses were bought by him.
- We will not tolerate this. / This will not be tolerated by us.
- She has written two books. / Two books have been written by her.
- They made a lot of profit. / A lot of profit was made by them.
- He owns six apartments. / Six apartments are owned by him.
- He donated all his money to charities. / All his money was donated to charities.
- He has won a jackpot. / A jackpot has been won by him.
- The police have arrested the smugglers. / The smugglers have been arrested by the police.

