分类：教育/科学-外语学习
问题：英语题一道1.Earthdayisa____oflifeando 
1.Earth day is a ____of life and our planet and ___  is for our own life and planet.A celebration; celebratingB celebration; to  celebrate which one ?  why?
回答：答案选A,首先a后面应该接名词,故第一个空用celebration,其次在and 句型中应保持前后一致性,即如果前为名词后就应接名词,前为动词后就应接动词,前为不定式后就应接不定式(to),而celebrating it 可以作为一个名词成份来与our planet 对应