_________ has already been pointed out, grammar is not a set of dead rules.
--Which car is better, the red one or the black one? --I prefer the red one, but it is really a matter of personal________.
In the past several weeks, many cities in Northern China________from heavy fogs, causing great inconvenience to people.
Could you tell me where you bought your beautiful handbag? I want to buy________too.
The new government made a promise that they would surely improve the________of people’s life.
A big crowd gathered _____ him ______.