But the river wasn't changed in a few days 4.________ even a few months.It took years of work 5.________(reduce) the industrial pollution and clean the water.Finally，that hard work paid off and now the water in the river is 6.________(clean) than ever.

　　Maybe you are facing an impossible situation.Maybe you have a habit 7.________ is driving your family crazy.Possibly you drink too much or don't know how to control your credit card use.When you face such an impossible situation，don't you want a quick fix and something to change immediately?

　　While there are 8.________(amaze) stories of instant transformation，for most of us the 9.________(change) are gradual and require a lot of effort and work，like cleaning up a polluted river.Just be 10.________(patience)．

　　1．was　考查时态。事情发生在1969年，是一个过去的时间，故此处要用一般过去时。

　　2．actually　考查词性变换之形容词变为副词。空格处修饰动词caught和burned，故用副词形式actually。

　　3．the　考查定冠词的用法。后面的most outstanding最高级，其前面要用定冠词the。

　　4．or　考查并列连词。句意：但是河流不是几天或几个月就改变了的。a few days 和a few months为并列关系，且此句是否定句，因此要用or连接。

　　5．to reduce　考查非谓语动词之动词不定式。句中it是形式主语，真正的主语是动词不定式，故用to reduce。该句结构为It＋takes＋时间＋to do sth.。句意：减少工业污染和清理水需要数年的工作。

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