A feather falls slower than a stone only because the air holds the feather back more than it ______ the stone.
He could not have the murderer ________ away with killing those innocent people.
The fact is that I earned my passage by working as an unpaid hand, which _______ my appearance.
_______ is even important is ______ as the earth cooled down, water began to appear on its surface.
When we get closer to the moon, we shall feel its gravity pulling us, but it will not be ________ the earth’s.
Why______you do everything as if you have to win?