1. C
2. A
3. B
4. D
5. B
6. B
7. A
8. B
9. B
10. C
11. C
12. A
13. A
14. D
15. A
16. B
17. B
18. C
19. A
20. D
21. C
22. A
23. C
24. B
25. B
The one you cursor is already on.
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I think it is b. Most beautiful, as c and d don't make sense. A is a possibility, but I'm pretty sure it is b. Most beautiful.
Most people are comfortable with the idea of a noun, but they may not feel so confident when it comes to the noun clause. A noun clause is a group of words acting together as a noun. These clauses are always dependent clauses. That is, they do not form a complete sentence. Take a look at some sample sentences containing noun clauses to understand their purpose and function.
Come again? I'm not understanding the question.