A run-on is an overly long sentence that lacks proper punctuation, making it sound very long and rambled. A fragment is an incomplete sentence that is missing some necessary information.
1. Run on; there should be a comma after "sweet." 2. Fragment; it is not clarified who lost 11 pounds. 3. Sentence 4. Fragment; it is not mentioned who ate the food. 5. Run on; "It was a beautiful day" and "There was not a cloud in the sky" should be separate sentences OR separated by a semicolon ( ; ). 6. Sentence 7. Fragment; it is not mentioned what happened three days before his birthday. 8. Fragment; it is not mentioned what happens before it starts to rain. 9. Run on; there should be a comma after the word "well." 10. Sentence