Answer:
(i) The storm rocked the ship violently
(ii) The artist painstakingly worked at his masterpiece.
(iii) Dad was offered a free gift by the firm.
(iv) I read in the paper that the burglar had been caught.
(v) At nightfall the cricketers began their piercing calls.
(vi) He wore a hat made of coconut fiber on his head.
(vii) Coffee is very popular in many parts of the world.
(viii) They could not explore the cave without a torch.
(ix) The shed was damaged during the storm.
(x) James sat next to the dog talking to himself.
I believe this is it:
1. us
2. who
3. us
4. who
5. we
6. us
7. who
8. we
9. us
10. who
11. us
12. who
13. we
14. us
15. we
16. who
17. we
18. whom
19. who
20. us
Important tip:
We vs. Us
We is a subject, Us is not.
Whom vs. Who
Use whom if it can be replaced with him/her.
Use who if it can be replaced with he/she.
I hope this helped!