C 1. [C] how
B 2. [B] In particular
D 3. [D] necessary
C 4. [C] optimism
D 5. [D] change
B 6. [B] measured
A 7. [A] Sure
D 8. [D] headquartered
A 9. [A] explain
B 10. [B] factors
A 11. [A] desirable
C 12. [C]emerged
A 13. [A] attribute
D 14. [D]experienced
A 15. [A] thus
D 16. [D] equally
C 17. [C] While
C 18. [C] hints
A 19. [A] shape
B 20. [B] lean towards
考后关注：
