请问“we must help save the earth”中的help

请问“we must help save the earth”中的help 改反意疑问句We must save the Earth.We must save the Earth,___ ___? 反义疑问句习题We must save the Earth.We must save the Earth,______, help and save the earth主题英文演讲稿 我们还能做些什么来帮助拯救地球. —— —— can we do to help save the earth We must help them? we must help it we must help ( ) we must save our earth作文 why must we save our earth 作文 what can we do to help save the world?作文 Here are some pieces of a____to help you save the earth