The conference was ________ fixed for the 10th, August, but later the unexpected landslide (泥石流) in Zhouqu in Gansu province, made us put it off.
When you finish reading the book, you will have______ better understanding of ______ life.
There was ______ time ______ I hated to go to school.
It is ______ world of wonders, ______ world where anything can happen.
While he was investigating ways to improve the telescope, Newton made ______ discovery which completely changed ______ man’s understanding of colour.
The most important thing about cotton in history is ______part that it played in ______ Industrial Revolution.