world earth day aims at what

world earth day aims at what 怎样将这个句子改为定语从句?急Earth Day is a day to call on people around the world to save our earth. what is Earth Day?when is Earth Day? 求初音earth day（MP3） world food day 意思 world和earth有区别?为什么 完形填空The world is full of variety.Trees,grasses and other （2） cover the earth.Above the sun shines on the earth as it turns in the universe.This is the world that we see （4） us every day.This world is also the world of chemistry.In thi day last night on earth 的吉他谱? When was the first Earth Day celebated? the earth turns _____itself once every day. Earth Day started还是was started The Day The Earth Stood Still 歌词 A lundar day lasts about one earth another day another world 歌词 World Laughter Day 是哪一天 The earth runs a______ the sun day after day. 以Making Every Day Earth Day为题英语作文 What is Earth Day?A.a day to celebrate peaceB.a day to honor farmingC.a day to celebrate natureD.a day to honor这是另一题：1.Name the smallest continent?2.On which continent is Canada located?3.The world's highest mountain is in Asia.Name this