-- you please put two pieces of turkey on the bread?--Sorry, I can’t do it.
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.
—Is this maths problem ___________? —Yes, I can work it out ___________.