8. Change the active to the passive. Choose the right variant
1. The scientists knew all the details.
a) All the details were known by the scientists
b) All the details was known by the scientists
c) All the details have known by the scientists

2. They discussed this problem last week.
a) This problem is discussed last week
b) This problem was discussed last week
c) This problem discussed last week

3. Shirley has suggested a new idea.
a) A new idea was suggested by Shirley
b) A new idea has been suggested by Shirley
c) A new had been suggested by Shirley

4. They have informed him of the test results.
a) He was informed of the test results
b) He has been informed of the test results
c) He will be informed of the test results
5. Alex is preparing that report.
a) That report is being prepared by Alex
b) That report is prepared by Alex
c) That report has been prepared by Alex
6. Will they give him any instructions?
a) Will he be given any instructions?
b) Will he give any instructions?
c) Was he given any instructions?