—I’m worried about my English.—_____ harder, _____you will catch up with your classmates.
Excuse me, is there ___________ in today’s newspaper?
Lucy knew nothing about it ___________ her sister told her.
He can play tennis better than ___________ in the class.
The old man lives ___________ , but he never feels ___________.
—Do you know mother giant pandas have only one or two babies ___________? — Sorry, I don’t know.