I never thought of it before, _______ all that my parents had done for me for granted.
The water and soil conservation project resulted in farmers ______ the crops on the farmland _____ trees and grass.
-Does the young man standing at the gate_____ the car?-No. The car is _____ his father.
---I heard Tom was badly injured in the football match.----________, let’s go and see him.
The students competed _____the honor of winning _____each other _____the school sports meet.
The Great Wall is __________ tourist attraction that millions of people pour in every year.