ⅰ.单词拼写根据首字母提示或者汉语注释写出下列单词的正确形式 1．you must try to ________ (集中) your mind on work and study. 2．young people usually have more e______ than the old. 3．the miners there worked in dreadful c______. 4．this ________ (关系到) the healthy growth of the children deeply. 5．the bee and the ant are diligent i______.
