— Could you tell me something about the boy who helped you just now ?— Sorry, I know nothing about him. We are ______.
---Tony, can you play_________ piano? ---No, But I can play______ chess.
Sally always likes to sit ____________ Mr. zhang, because she enjoys talking ______ him.
—I’msorrythatJohnisout.—Pleaseaskhimtocallmeassoonashe____.
Guangzhou is ___ the southeast of China .
Chinese culture stands for the culture in the east. It is different from that in the ______.