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