If you try to sit on two chairs,you will fall them .For life,you must choose one chair.[ ]

____the book if you are free, and you will learn a lot about how to study English .

Is this ________ Chinese book?—No，it’s ________ English book.

Wouldn’t it be ____ wonderful world if all nations lived in ____ peace with one another?

Linda, you need to talk to my grandma loudly, she is a bit __.