----I’m sorry. I didn’t do a good job.------That’s OK. You do your best _________a. after all b. in all c. at all d. first of all
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.
— Is this maths problem ___________? — Yes, I can work it out ___________.
— ___________does your sister walk her dog? — Once a day.