I don't have time to answer all of them but here is 2-7. 2.became 3.held 4. it's either "him singing" or "his singing" 5.has 6. should have 7. walked
Answer:
Can you show a picture of the passage? I can't help you with the question if I don't know what it's about.
(Btw I love your pfp, Shikamaru's one of my favorite characters)
D. The works cited page should always contain all the information about the authors and websites you found the info