Good job noticing these sentences! Here are the corrected versions and a short, easy explanation.
Original: Sloth love to nap. They spend most of the day dozing upside down on branches.
Correct (plural): Sloths love to nap. They spend most of the day dozing upside down on branches.
Correct (singular): A sloth loves to nap. It spends most of the day dozing upside down on branches.
- Rule 1 — Make the subject and verb match: If the subject is one (a sloth), the verb needs an "s" at the end: "loves." If the subject is more than one (sloths), use "love."
- Rule 2 — Match the pronoun to the subject: Use "it" for one animal (singular). Use "they" for more than one (plural).
- Everything else is fine: "upside down on branches" is correct and makes a nice picture!
Try fixing this one: "Tiger sleep in the grass." (Hint: change "Tiger" or the verb.)