56. It is said that some teachers will go to Japan. They are________going to work as exchange teacher of Chinese.
Our bus drove ____ the Great Hall of the People.
I was wandering ____ the streets when I caught sight of a tailor's shop.
We walked ____ the Tian An Men Square to the Museum of Chinese History.
The plane flew ____ the city.
1 heard ____ the book long ago, but I have never read it.