Corrected sentence (simple): Sugar gliders love sweets like sap, nectar, and fruit.
Another correct version (a bit fancier): Sugar gliders have a strong love of sweets, such as sap, nectar, and fruit.
Why this is better — step by step for a 7-year-old:
- "Sugar gliders" is the animal we are talking about (the subject).
- "love" or "have a strong love of" tells what they feel. "Love" is shorter and easier to read.
- "sweets" is what they like (the thing they love).
- Use "like" or "such as" before examples. This shows sap, nectar, and fruit are examples of sweets.
- Put a comma between items in a list: sap, nectar, and fruit. The comma before "and" makes the list clear.
- We use "fruit" (not "fruits") here because we mean fruit in general.
Quick tip: Your original sentence was understandable, but making it a little simpler and adding commas makes it clearer.