Here are the answers for the exercise
1. have been
2. did she meet
3. has he been
4. went
5. have we owned
6. did she graduate
7. did the children go
8. didn't write
9. drank
10. Has she ever tried
11. have you lived
12. Have you ever been
13. didn't go
14. did you go
15. Have you eaten/ Did you eat (Both is correct)
16. have wanted
17. has had
18. didn't see
19. did you have
20. Has he ever played
All, likewise, in the same way
Answer: A quote form Beowulf, "Wiglaf obeys Beowulf's dying wish and goes down into the barrow, where he finds amazing piles of treasure, all of it rusting and decaying. He's able to see everything because of a glowing golden standard high overhead."
Oratorio - it is strictly a concert piece, not musical THEATRE (where the costumes, etc, come in)
Hope this helps.