If it ________ for the heavy rain then, we would have arrived here ahead of time.
— What is the man, do you know?— I don’t know exactly. But I think he can be _______ but a teacher.
In china, the number of cities is increasing ________development is recognized across the world.
______ is known to us all is that the old worker, ______ life was hard in the past, still works hard in his seventies.
In the Olympic Games, swimming is ______ second ______ importance only to track and field event.
Jack glared at Susan, tears _____ his eyes, and shouted out the words ____ in his heart for years.