I am secretary of the City Student Union(CSU).secretary前为什么不加a?

I am secretary of the City Student ...secretary前为什么不加a? I am secretary of the City Student Union(CSU).secretary前为什么不加a? December 13th,2005Dear Sirs,I am very happy to apply for the position of secretary,which you advertised in China Daily of December 10,2005.I have been working as a secretary at a college office.Because I am the only secretary in the office,it is nece i am the secretary of Mr.Wangor I am the secretary to Mr.Wang? 哪个介词才对？ I am on the 20th page of the book I am readingso far I. 关于08年英语高考改错题（宁夏卷）的一些问题Dear Ms Smith,I am secretary of the City Student Union (CSU).We were organizing an artexhibition for high school students in city.This will be held on the 9th of Julyin the Exhibition Hall 关于08年英语高考改错题（宁夏卷）的一些问题Dear Ms Smith,I am secretary of the City Student Union (CSU).We were organizing an artexhibition for high school students in city.This will be held on the 9th of Julyin the Exhibition Hall the Secretary of State Secretary of State Hillary Secretary of the Army I am tired of i am sick of I am secretary of the company.为什么不在am 后面加 a 1、如果加a是错误的吗?2、Everyone could do something for our environment.为什么要把could 改成can?3、if i am the last one (to) leave the room,i would remembei to turn off the 1.I could feel the earth s___ on the day of May 12th,2008.2,Would you like another cake?Thanks.I am f____.求答案+翻译 初二英语任务型阅读求答案Dear Millie,How are you?I am going to leave school in June,but I am not happy at all.Do you know why?I am going to have two very important tests.One is on the 10th of June.The other is on the 12th of June.If I don Secretary of State怎么翻译 开头:I see nothing,I am helpless love 1 I am tied in the snare set by myself2 I see nothing,I am helpless3 Actually I am aware that your love to me has gone with th...4 I will never be able to find it even I try hard to5 I’m aware of our difficul 根据首字母填空 I have selected Mr Green to a_____ the position of the company secretary.