—Mr. Ding, I have some problems_______ the passage.—Remember_______ it three or four times at least.
Look at the sign. You have to _____ in the library.
— ____ is it from your home to the subway station? —About two kilometers.
Our music teacher is a beautiful girl. She is like a sister _____us.
There is a very big river _____ their school _____ the village.
It’s easy ________ chess.