Helen's class Home work _ Passive sentence

Exercise 1: Passives
after rewrite the sentences

1) The theft has been reported to the police.
2) The charity has been given 1,000 pound.
3) The program will be demonstrated to the students.
4) The procedure was explained to me.
5) Large areas of forest are being destroyed every day.
6) The land next to the university has been bought.
7) Tomorrow all the marketing will have been completed.
8) The library should have been finished by the time you arrive.
9) Results are expected better soon.
10) Their complaints should be sent to the head of department.
11) The lecture had to be posponed because of illness.
12) The fire could have been caused by an electrical fault.
13) The next year's conference are going to be held in Birmingham.
14) This fact is known very well.
15) The new lecture theatre was opened only last month.
16) The answers must be written on the examination paper in black ink.
17) This type of computer are being manufactured in Korea.
18) The problem should be investigated.