There is an office in the building.如何改为否定句?

there is an office building in the picture是什么意思?There is an office building in the picture是什么意思?` Our classroom is big.our划线提问 I'm here.here划线提问 There is an office on the ground floor.同上an划线提问 I am afraid there is nobody in the office翻译 Peter is an office worker.He works in an office in a small town.O____day his boss says to him,Peter,I w____you to go London,to an office there,to see Mr.Brown.Peter goes London by train.W_____he goes to London,he thinks,the office isn't f____from lucy is an office worker There is an I in happiness.There is no Y.It is an I.是什么意思 I 'm an office worker. There is an office between the two rooms.(对an提问)是不是How many are there office between the two rooms? is,an,office,next,there,your,to,classroom（?）连词成句 连词成句：there,library,in,front,is,an,of,office,the There is an office in the building.如何改为否定句? He is an office assistant 根据an office assistant提问 There is an I in happiness,There is no Y in happiness,Its an I. There is an I in happiness,There is no Y in happiness,It's an I There is an I in happiness,There is no Y in happiness,It's an I 用a,an,the填空 Do you have__dictionary?I need____English dictionary.Yes.there is__dictionary onmy desk.Is there____post office near your home?Yes,It's at the end of____road.Is New York____capital of_____USA? -I want to send an e-mail at once.But I can't find a-----.-Don't worry.There is one in my office.A.CD playerB.telephone.C.computer Excuse me. is there a post office near here? I want to post a()