With the word "PM2.5"______ heard and seen in our life, people become more and more concerned about air pollution.
Now that you have accepted the task, the only thing you can do now is ______ on how to fulfill it.
Who ______ the fight against the H1N1 flu ______ it not been for the Chinese scientists’ great efforts?
Lots of coal miners died on the job last year, ______ the government to shut nearly 800 small mines in Shanxi Province alone.
— Mom, can you give me an extra 200 yuan a month? — Son, we have just bought a house, and from now on we need to practice strict ______.
— How many pages have you covered of that book on financial crises? — I have given up, for it’s ______ me.