61.It is imperative that something urgent be done to combat the widespread use of illegal drugs among teenagers。

　　62.It is upsetting to find people who behave differently from us. We may, at first, assume that something is wrong with them。

　　63.It is highly necessary for our government to stop the corruption of government officials。

　　64.It is important (vital) for everyone to participate in physical exercises, for they will do good not only to our body but also to our mind and personality。

　　65.It is currently difficult for a university student to find an ideal job upon his graduation, especially those majoring in fundamental courses such as history and mathematics。

　　66.With the rapid growth of economy, the living standards of the Chinese people have greatly improved. Many of them can now afford to buy houses and cars。

　　67.With the growing number of college graduates being turned out each year, the situation in the job market is getting tighter and tighter。

　　68.With the improvement of the living standards of Chinese people, more and more of them can afford to go traveling, and some even choose to go abroad。

　　69.As our national economy develops fast, an increasing number of people have come to realize that the shortage of resources will pose a threat to the future development of our country。

　　70.It wasn’t until a year later that I realized that the person she really loved was my roommate John。

　　61。采取紧急措施抗击青少年中违禁药品的广泛使用是很有必要的。

　　62。发现有人行为与己不同是令人恼火的，一开始我们可能认为他们有问题。

　　63。我们的政府很有必要阻止政府官员的贪腐。

　　64。每个人都得参加体育运动，这很重要，因为运动不仅对身体，而且对心理和性格都有好处。

　　65。目前，大学生毕业时找份理想的工作很难，尤其是那些读像历史和数学等基础学科的学生。

　　66。随着经济的迅猛发展，中国人民的生活水平得到了极大的改善，他们中许多人买得起房子和车子了。

　　67。随着每年大学毕业生人数得增长，就业市场的形势变得越来越严峻。

　　68。随着中国人民生活水平的提高，越来越多的中国人能够出门旅游了，有的甚至选择去国外旅游。

　　69。随着咱们国家经济的飞速发展，越来越多的人意识到，资源的短缺将对我们国家的未来发展构成严重的威胁。

　　70。直到一年后，我才意识到她真正爱的人是我的室友John。