Tom, clean up the broken glass _________ someone walks on it.
As is known to all, __________ People's Republic of China is __________ biggest developing country in the world.
There is no __________ swimming-pool in this school and the students often go to swim __________.
My English teacher is really __________. She is often seen working in her office far into the night.
__________ Hu Jin would not appear that night, Lifang was __________.
It took us quite a long time to get to the amusement park. It was __________ journey.