Answer:
- Billie Eilish, who's (who has) had several hit songs recently, is one of my favorite singers.
- Danielle, who's (who has) lived in Australia for the past two years, just moved back to the U.S.
- Jack doesn't know whose number that is.
number of whom. it belongs to someone obviously.
- My cousin Mike, who's (who is) one of the funniest people I know, is coming to visit next week.
- I don't know whose receipt it is, but this lasagna is delicious!
The receipt is "of whom". It must be belonging to someone, and they don't know who that someone is.
- My mom asked, "Whose dirty shoes are on the kitchen floor?"
dirty shoes "of whom". shoes belong to someone
- Regina, who's (who has) finally recovered from her cold, invited Ariadne to sleep over on Friday.
Explanation:
- who's stands for who has or who is.
- "whose" is associated with someone or something, as in of whom/ which.
- who's speak of living things, like a person who is funny or who has a resort.
- whose associates itself with non-living things(MOSTLY! The sentence can also be He's the person whose opinion I respect the most.), or we can say it associates itself with the belongings or characteristics of a living being.
