there existed a temple where the school stands.为什么不直接用there is?

there existed a temple where the school stands.为什么不直接用there is? There be句型完全倒装.但不知道为什么后面的动词要加ed____a certain doubt among the students as to the necessity of the work A.It existed B There existed C There had D Existed there There be句型完全倒装 不知道原来的句子 temp 谁会翻译这句：There existed a certain doubt among the students as to the necessity of work. _______a certain doubt among the students as to the necessity of the work．A．There existed B．It existed C．They had D．There had _______ a certain doubt among to the students as to the necessity of the workA.there existed B.there had c.they had D.it existed麻烦问下 为什么D不行 _______a certain doubt among the students as to the necessity of the work． A．There existed B．It _______a certain doubt among the students as to the necessity of the workA．There existed B．It existed C．They had D．There had -------a certain doubt among the students as to the necessity of the work.A.They had B.There existedC.It existed D.There had ---There existed----a certain doubt among the students as to the necessity of the work.请哪位高手帮分析一下这个句子的结构?前面如果换成It existed 我的意思是主 谓 宾的句子结构？ c语言 temp＝0 ；0＝temp的区别不好意思应该是 temp＝a；a＝temp Man _______ on the earth for thousands of years . 选项: a、is existed b、are existed c、has existed 动词的时态与语态Do you know that Roman Empire ____ for centuries?A.has existed B.had existed C.existed D.was existed为什么? ( )about the best way to learn English,A there are a certain doubtB There existed a certain doubt C It existed a certain doubt D There had a certain doubt给出的答案是B.请问能不能选择A答案?为什么? c语言 能不能讲解一下temp＝a ；a＝b；b＝temp int i,a,b,c,temp;for(i=0;ib){temp=a;a=b;b=temp}if(b>c){temp=b;b=c;c=temp;}} 英语翻译can you tell me how long dinosaurs -------- on the earth before they---------?A had existed ; disappeared B had existed; were disappeared C have existed ; disappeared D have existed ;were disappeared 请问这道英语语法题There ought to be less anxiety over the perceived risk of getting cancer than ＿in the public today.A.exists B.exist C.existing D.existed 为什么选A项? 麻烦翻一下这几句英文.实在看不懂And the relationships We eventually had during that period were just a consequenceof the rule.If it had not existed,there would be no one but us.