What makes online shopping so popular is it shortens the distance between manufacturers and consumers.
Under no circumstance _____ to tell lies to parents.
"_____ your meeting is!" he offered them his sincere congratulations.
From my point of view,the theory that by the scientist is not quite scientific.
Tom’s mother often requires that he more time in studying English every day.
We can't go out,for it is getting dark and ,it is raining.