(1) They have postponed the meeting indefinitely.
- (a) The meeting has been indefinitely postponed.
- (b) The meeting was postponed indefinitely.
- (c) The meeting is being postponed indefinitely.
- (d) The meeting had been postponed indefinitely.
(2) The chef will prepare the dessert tonight.
- (a) The dessert was prepared by the chef tonight.
- (b) The dessert will be prepared by the chef tonight.
- (c) The dessert is being prepared by the chef tonight.
- (d) The dessert has been prepared by the chef tonight.
(3) Did the storm damage the coastline?
- (a) Has the coastline been damaged by the storm?
- (b) Was the coastline damaged by the storm?
- (c) Is the coastline being damaged by the storm?
- (d) Had the coastline been damaged by the storm?
(4) The teacher teaches English to the students.
- (a) English is taught to the students by the teacher.
- (b) The teacher is teaching English to the students.
- (c) The students are taught English by the teacher.
- (d) English was taught to the students by the teacher.
(5) The company will launch a new product next month.
- (a) A new product will be launched by the company next month.
- (b) The company launched a new product last month.
- (c) A new product will be launching by the company next month.
- (d) A new product will have been launched by the company next month.