Sentences need help correcting having trouble with please

Could you please help me with these setences I'm struggling with?

1 Has your chest never hurt so much that you couldn't breathe and your back hurt.
2 She was eating fries and missed her mouth and found herself with ketchup on her face.
3 The scale is broken, its adds two pounds to your weight so you think you're heavier than you actually are.
4 I only partially told her what I was up to. I didn't tell her everything.
5 This phone of yours is a bit too think for our day and age. Try to keep up with technology.

6 I feel nauseated just thinking about it.
7 What date is next monday? Is it the 28th?
8 I got on the subway for 3 station during rush hour. It was so pack that I got my coat stuck in the door and ripped it.
9 What caused this infection?
10 The metro came to an abrupt halt yet I didn't feel it stop.
11 Your arm hurts from lying in a bad position for hours watching the movie.

12 He puts ketchup on each fry straight from the bottle.
I'm going to tell you how many more hours we're going to play before it 's finished.

thank you