Change these sentences into the passive voice.
1.He doesn't prepare his lessons well before class.
=> His lessons aren't prepared well before class.
2.You must write your lessons im ink.
=> Your lessons must be written in ink.
3.You ought to water the plants every day
=> The plants ought to be watered every day.
4.They must pay the bill before the first of the month
=> The bill must be paid before the first of the month.
5.The postman will deliver the mail tomorrow
=> The mail will be delivered by the postman tomorrow.
6.The children usually eat vegetables and fruits
=> Vegetables and fruits are usually gotten by the children.
7.Their school will organize an art exhibition next month
=> An art exhibition will be organized by their school next month.
8.Our teacher corrects our homework
=> Our homework is corrected by our teacher.
9.They deliver the newspapers to this office every morning
=> The newspapers are delivered to this office every morning.
10.Do they give many courses in English during the summer break?
=> Are many courses in English given during the summer break?