11. By
12. In
13. To
14. Off
15. On
16. Toward
17. By
18. On
19. In, to
20. After
Answer: I
Explanation:
Mrs. Watson gave my classmate and I a good grade on the project.
Twin Towers, which opened on April 4, 1973 and were destroyed in 2001.
Answer:
A
Explanation:
an author's viewpoint is his expression or opinion and biased