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In modern world, It is very necessary to improv quality of the nation. But there still are many impolit behaves like wasting watre, throwing rubbish, cutting in line, spiting vi everywhere or speaking aloud in public and so on. I think those behaves are bad for us. Something must be done to stop it. We should abey the rules in daily life. And it is our duty to protect environment. For example we can save a drop of water, we should plant trees as much as we can, we also can call up people join us to protect our home.