解析：考点：非谓语动词题意：老人和年轻人之间出现交流问题并非罕见
答案：there to be
解释：it is加形容词后一般接不定式结构：这里考的是it is not uncommon to do sth.的结构，正如 it is necessary to do sth.等一系列句型一样，故选择A

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People have __________ poverty and now they live happy lives.

A. got tired of

B. got up

C. got hold of

D. got rid of

解析：参考解析: get tired of意为"厌倦，厌烦"; get up意为"起床"; get hold of意为"抓住、把握住"; get rid of意为"摆脱、去掉”。根据题意，故选D。

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There is no doubt ________ Herbert is the most industrious student in our class.

A. whether

B. what

C. that

D. if

解析：参考解析:名词doubt用在肯定句中，其后的同位语从句用whether引导，若用在否定句中则由that引导，故选C。

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His knowledge of genetic engineering earned him a ______ as an expert in the field.

A. capacity

B. basis

C. reputation

D. confidence

解析：reputation名声，名誉；声望

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He will ________ his sister by telephone on Monday.

A. contact

B. constitute

C. conflict

D. contend

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Please note that I will be away from Boston next week, _______ you want to call me and discuss things.

A. in case

B. unless

C. until

D. so that

解析：参考解析:连词辨析。选择关联词要看主句与从句的逻辑关系。本题后半句说明了情况，前半句是一个假设，只有此处填in case才可以连接两个句子表示假设，选A。B项unless意思是"如果不”，相当于if not; C项until意思是"一直到..."，一般与not前后搭配; D项so that引导目的状语从句。句意:如果你想打电话跟我讨论事情的话，请注意我下周就要离开波士顿了。

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He tried to _______ his nervousness with smile when he made the speech, which made him much more nervous.

A. relax

B. diminish

C. vanish

D. cover

解析：cover his nervousness

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There is something wrong with my car. It will take me one hour to have it ________ .

A. fix

B. fixing

C. to fix