Sentence 5 talks about looking for alternate energy sources but doesn't specifically mention solar energy so it is wrong. Sentence 10 says that solar energy is a "significant development" but it doesn't provide specific evidence so it is also not correct. Sentence 6 is the best answer - it shows that it is already being used and it has the potential to be used even more.
Answer:
I would say option C is the answer
HEY :))
The Best Answer Is Example of the conflict between his mind and body is He is physically weak, but his mind is sharp.Even though his mind capable in finding out what Gregor supposed to do in his life, his body simply wouldn't allow it in happen, which cause Gregor, even more, struggle because he can't rely on ignorance to comfort his helplessness.
Glad To Help!!! :))
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
