---I often have hamburgers for lunch.--- You’d better not. It’s bad for you _____ too much junk food.
If you eat ________ junk food, you will become overweight .
He has lost his pen. He is _______ it everywhere.
My mother told me _______ junk food at school.
There 's a teacher _____ with your parents in the teachers' office.
That computer_____ me quite a lot of money.