In a chemical change, energy cannot be created ,____.
Tom rushed out in a hurry, ______ the door ______.
This computer doesn’t work properly, because the operating system has.
—May I book two tickets for the football match on August 8 ? —Sorry, sir. But we have no tickets
The amount of money _____ for the ten provinces in southern China suffering the snowstorm was soon collected.
Come and see me whenever _______.