So this took me quite a long time to answer and some I am not quite sure of but here it goes:
1. C
2. B
3. R
4. L
5. D
6. Q
7. G
8. E
9. K
10. I
11. H
12. O
13. T
14. P
15. J
16. A
17. F
18. N
19. M
20. S
Hope this helps, sorry if some are wrong!
Answer:
D. This excerpt reflects a combination of text structures.
1a: grim
1b: The Caplans are a robust, healthy lot. Or A man drank some robust wine.
2a: wince
2b: a Formula One car is superior to an Indy car in its acceleration
3a: notify
3b: his mouth fell open as he perceived the truth
4a: throbs
4b: nothing abated his crusading zeal