This is Mr White’s ________ trip to Beijing. He has been there twice before.A. first B. second C. third
I’m sorry to keep you _______ for almost two hours.
He looks very pale. He may have _______ fever.
When the traffic lights are red, we _______ stop.
—Oh, you have a headache and a cough. __________ have you been like this? — Two days.
Would you mind _________ the piano softly ?