18. He gave him back the money last Sunday.  19. I can’t do these exercises quickly.  20. She had finished the report by noon

18.  He gave him back the money last Sunday.
=> The money was given back last Sunday

19.  I can’t do these exercises quickly.

⇒ These excisises can't be done quickly by me.

20. She had finished the report by noor.
=> The report had been finished by noor

18. He gave him back the money last Sunday.

=>The money was given back last Sunday.

19. I can’t do these exercises quickly.

=>These exercises can't be done quickly by me .

20. She had finished the report by noor.

=>The report had been finished by noor