一Excuse me,may I ask you a question?一Sure,________ .A.go ahead B.you’d better not C.I hope so
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.