The man was mad at me.
— Xu Beihong is known _____ a great Chinese painter.— Yeah. He is famous _____ his horse paintings.
We know that she enjoys books very much.
We often see the sign in a hospital.
The Leaning Tower of Pisa (比萨斜塔) is so great _____ old building.
There is a big tree in ________ front of our classroom and a big blackboard_in ________front of it.