( ) —— I'm sorry I can't help you. —— ________. A. Not at all. B. You are welcome. C. It doesn't matter.
—Can you sing a song in English? —No, I __________.
He has two basketballs. One is new, __________ is old.
Bruce, look at your dirty shoes. You’d better __________ them right now.
I met Jack on way home yesterday.
It’s hot __________ summer in Beijing.