Seven and one is ______.
—The meeting ___________ because of the smog in Northern China last week.— Oh, it’s too bad! We should take action to improve the air quality.
— What would you like _______ your afternoon tea?— Just a cup of coffee _______ some sugar and milk. I’d like sweet coffee.
—Excuse me, is this________ new pencil sharpener?—Yes, it’s________. He bought it just now.
Lucy is a very student, she usually answers the teachers’ questions in her class.
— I’m not going swimming this afternoon.— ______. I have to help my mother do some cleaning.