which of the following is not a run-on sentence 
1. should we go to the fair tonight or tomorrow night?
2. I really wanted to watch the new episode of my favorite TV show,  but I had too much work to do maybe on watch it tomorrow night 
3. my car is out of gas we cannot reach town before it gets dark 
4. I waited in the car for my mom while I was waiting I texted my friend to see if she could meet up later that day