Listen! ________ is knocking on the door. Go and see who it is.
— Have ______ cup of coffee, please.— Thank you.
John ______ leave for New York tomorrow, but I’m not sure.
Be careful with the knife, ______ you’ll be hurt.
— ______ do you go to the gym?— Twice a week
— Where is Jenny?— She is doing her homework ______ the classroom.