Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _______ it was so poorly equipped.
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.