根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。
【小题1】If you get your ears pierced (穿孔) , your head teacher will be angry with you and you will break school rules.
【小题2】What about reading aloud to practice ppronunciation (发音)？
【小题3】As a teacher, you must cconcentrate (全神贯注) on your work .
【小题4】The air pollution in this area caused the death (死亡) of many trees.
【小题5】He is tterrified （害怕）of speaking in public.
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解析：
【小题1】使役动词，get sth done，把某事做了。结合汉语可知填pierced。
【小题2】结合前文动词practice可知填名词，结合含义可知填pronunciation，抽象名词不可数，用原形即可。
【小题3】结合汉语及首字母可知考查动词concentrate，must是情态动词，后面动词用原形即可。
【小题4】结合前文冠词the及下文of many trees 可知填death，抽象名词，不可数，用原形即可。
【小题5】结合前文系动词is及汉语可知考查“害怕”的形容词格式terrified。