成都市双流市2014
高考英语三月周练（4）附答案
社会生活类阅读理解
melissa poe was 9 years old when she began a campaign for a cleaner environment by writing a letter to the then president bush. through her own efforts, her letter was reproduced on over 250 donated billboards (广告牌) across the country.
the response to her request for help
