Przyimki angielskie

How many students are there atforinon your class?
I'm sorry, but there aren't any shops open atforinon this time.
There are fifty states atforinon the USA.
Chocolate hasn't got any vitamins or minerals atforinon it.
Is there any unhealthy food atforinon her shopping bag?
Is there any milk atforinon the fridge?
There isn't any milk: how about lemon atforinon your tea?
There are some letters atforinon you.
Are there any knives atforinon the table?
I'm atforinon a diet.