Answer:
1. could
2. should
3. can
4. could
5. might
6. can
7. must
8. manage
9. might
10. could
11. should
12. should
13. might
14. must / ought to
These are only suggested others are suitable for some too, I just think these make more sense.
Hope this helps :)
B. She refuses to let him pity himself
Answer:
The Rubik's Cube is a puzzle that was created in 1974 by Erno Rubik. Since the 1980s, this has become one of the most popular puzzles ever.