___ of the earth must be ___ to the earth.(friend) 词形变化

___ of the earth must be ___ to the earth.(friend) 词形变化 to be a friend of the earth If you want to be a Friend of the Earth,you must promise the 改反意疑问句We must save the Earth.We must save the Earth,___ ___? friend of the earth 英语作文 To be friend of the Earth To be a Friend of the Earth作文 we want to be friend of the Earth. how to be friend of the earth 作文60字, 一道英语首字母填空!if you want to be a friend of the earth,you must p A body weighs ___ from the surface of the earth. Be friend of the earth 英语作文 50字