There is an expansion period during which after burning of the fuel may take place.帮忙分析一下句子成分从句中during which是做状语吗,那从句的主语是什么我觉得after burning of the fuel 作状语which 作主语,所以句子

There is an air port. Life there is an absolute There is an A,an U and______R when there is a game,there is an end. There is a pencil There is an egg. There is an interesting story ______the newspaper . There is an apple on the There is an apple in his hand there is _____ typhoon. (a,an,the,/) There is no why,it`s an There is an English p____ this evening there is an a___elephant in the zoo. there is a a------ an amusement park there is an apple in the tree . Is there an answer to any question? There is an existing account associated with there is an error in processing your There is an I in happiness.There is no Y.It is an I.是什么意思