Run-on sentences

Which sentence is correct?

• We went to the beach it was fun to play in the sand.

• We went to the beach. It was fun to play in the sand.

Which sentence is correct?

• I wanted to see a movie, but I had to clean my room first.

  
  

• I wanted to see a movie, I had to clean my room first.

  
  

Which sentence is correct?

• I am a woman I am a construction worker.

• I am a woman. I am a construction worker.

Which sentence is correct?

• I fell asleep, but the TV woke me up.

• I fell asleep The TV woke me up.

Which sentence is correct?

• Raffi sings children's songs he is an excellent musician.

• Raffi sings children's songs. He is an excellent musician.

Which sentence is correct?

• Mary came home from work early we worked hard on our project.

• Mary came home from work early. We worked hard on our project.

Which sentence is correct?

• I was too tired to go to the store the guys shopped for three hours.

• I was too tired to go to the store, but the guys shopped for three hours.