—Alas! I have left my key to the office in my car.—Don't worry. I ________ it for you. Wait a minute.
What he had done ____ a lot about his honesty.
--What bad luck! I had a cut in salary yesterday.--____. I warned you not to be late again and again but you ignored it.
The____of hanging clothes across the street is a common sight in many parts of the city.
____ people from all walks of life are working hard to create ____new Hefei.
One survey shows that large quantities of water ______wasted every year in China.