Dan was late, we left without him.
Incorrect (comma splice)
Ran as fast as he could.
Incorrect (fragment)
Mary came home from work early, she had been feeling ill all morning.
Correct
I completed my assignment. However, I have not submitted it.
Correct
I am not angry with you, I am not happy with you, either.
Incorrect (comma splice)
Although there are some strong arguments in favor of higher taxes.
Incorrect (fragment)
Because of the rain, the party was canceled.
Correct
I will watch The Office you do your homework
Incorrect (run-on)
The tall tree, the one that I loved to climb.
Incorrect (fragment)
My favorite Mediterranean spread is hummus it is very garlicky.
Incorrect (run-on)
Knowing that Phil would be furious when he arrived home, Sarah decided to go out for dinner with her friends.
Correct
I completed my essay, but I have not submitted it.
Correct
Raffi sings upbeat children’s songs he is an excellent musician.
Incorrect (run-on)
Knowing that he was in big trouble.
Incorrect (fragment)