— Sorry, I have to ____ now. It’s time for class.— I’ll call back later
He got up late and hurried to his office, ________ the breakfast untouched.
We _________ the difficulty together, but why didn’t you tell me?
________ at the door before you enter my room, please.
________ with care, one tin will last for six weeks.
— Can I have a day off tomorrow, Mr. Johnson? — ________. I can manage without you.