The government should protect the old valuable buildings ____ they are not in harmony with the modern ones nearby.
The first place to visit for foreign friends is the Great Wall, which is the __________ of China and one of the seven wonders in the world.
He walked __________ the bridge, pushed his way __________ the crowd of people and soon came to a hut.
Qingdao lies __________ the south of Shandong Province,__________ the north of Shanghai, and __________ the eastern coast of China.
She was __________ by her English teacher, and now she has been a famous translator.
Katherine __________ on that poem for a month, and it's still not finished.