Which sentence needs to be fixed to make it complete?
- The cat sleeps on the warm, soft couch.
- My little sister and I played games outside.
- Ran fast to catch the school bus this morning. (correct answer)
- We ate lunch together at the kitchen table.
Explanation: Choice C is missing a subject - we don't know WHO ran fast. It needs words like 'The boy' or 'I' at the beginning. Choices A, B, and D are all complete sentences with both subjects and predicates.