Answer:
some advice is to study more of the subject get more sleep and drink more water
Answer:
https://www.bartleby.com/essay/The-Worst-Vacation-Of-My-Life-FKCS5RAZVJ
Explanation:
fonud this link that might help
C. Whales. Because normally it is the first word and even though mammals would be considered a subject, it isn't the main subject.
Hope this helps!! :)
The second or fourth one I'm not sure