---Must I go to medical school and be doctor like you,Dad?--- No, you __________, son. You’re free to make your own decision.
I’m going ___ a picnic on Saturday.
It’s ten o’clock. The children are ___ a good time.
My father works in a ________.His students like him very much.
Jim can’t go to school ___ his parents have no money.
___ knows the way to the hospital so we have to ask the policeman for help.