Wake up, Tom! It’s time to get up now, ________ you’ll miss the school bus.A. or B. and C. but
— ______ do you like the song “trouble is friend”?— Wonderful. It’s worth ________.
If you don’t work _______ enough, I don’t think your dream will come _______.
--- _______ will the fog and haze(雾霾) last? ---I have no idea. There is no sign of an end.
Many old people _________ his age die _________ cancer.
Look, the old man who is playing guitar is university teacher.