______Japanese language is very difficult to learn.
Both of them entered __________ after finishing high school.
He spent _________ of his spare-time learning English.
He is very good at playing ______ piano.
People elected Lincoln ______ President of the United States.
It is __________ book for beginners.
How _______ girl she is!
The British commander tried to make Nathan Hale _________, but he failed.
They were put in _________.
He is used to sleeping in ______ daytime and working at ______ night.