Grammar: Put the verbs in brackets in the correct passive form.

Solution:

1. A: Are the walls painted yet?
2. B: No, they will be painted tomorrow.
3. A: That's a beautiful statue.
4. B: Yes. It was sculpted by a local artist last year.
5. A: They are building a new concert hall in town.
6. B: I know. It will be opened by the mayor next month.
7. A: We were amazed by all the fossils in the museum yesterday.
8. B: I know. They were collected over the past 50 years.

Explanation: We convert the active verbs into the passive voice according to the tense and context of each sentence.