—Maria is wanted on the telephone. Where is she? —She _________ the library. You can find her there。
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.
How long does it take you _____ to work?
_____ our group, Li Fei often goes to bed late _____ school nights.