---Why are you busy these days?-- I am writing a book.
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.