根据下列各句空白之后的汉语提示词及首字母提示，在答题卡指定区域的横线上写出对应单词的正确形式，每空只写一词。(注意：请写出完整的单词)
小题1:Michael Jackson made a great ______ (贡献) to the world’s popular music.
小题2:The majority of the ______ (市民)are against the project.
小题3:These ______(古代的) buildings must be preserved.
小题4:She dropped studies because of ______(贫穷).
小题5:What do you thing is the most important ______ (发明) in the 20th century?
小题6: The two leaders ______(交换) their ideas about this problem at the meeting held last month.
小题7:His heart is beating______ (猛烈地) while waiting for the result...
小题8:People are ______ (抱怨)about high prices.
小题9:Why do you want to ______ (辞职)your position as secretary?
小题10:The world's resources are limited, so the reusable resourcesshould be______ (循环利用).
小题1:contribution
小题2:citizens
小题3:ancient
小题4:poverty
小题5:invention
小题6:exchanged
小题7:violently
小题8:complaining
小题9:resign
小题10:recycled
题目分析：
小题1:contribution 名词贡献：contribution
小题2: citizens 名词市民:citizen.根据后面的are说明主语是复数形式。
小题3:ancient 形容词古代的：ancient
小题4:poverty 名词贫穷：poverty注意其形容词形式是poor
小题5:invention 名词发明：invention
小题6:exchanged 动词交换：exchange.根据后面的last month说明使用过去时。
小题7: violently 副词猛烈地：violently修饰动词beat做状语
小题8:complaining 动词抱怨：complain。根据句意说明使用现在进行时。
小题9: resign 动词辞职：resign
小题10:recycled 动词循环使用：recycle。本句是其被动语态，故使用过去分词。
考点:考查单词的识记。