be first in 第一次参加,请各位同学,帮忙查一下,这里的first是什么词性的词?鄙人将会十分感谢

be first in 第一次参加,请各位同学,帮忙查一下,这里的first是什么词性的词?鄙人将会十分感谢 It will be my first time in 用be in（参加）造句, the first exercise should be done in class and the rest __at home a is to be doneb are to be done请做出解释~ 周三要参加面试,想请英语达人帮忙修改一下英文自我介绍,重谢!Good morning.I am glad to be here for this interview.First let me introduce myself.My name is Li linsheng,I was born in January 25,1991.I am graduating from the Mathe i want to be the first in your mind是什么意思 you'll never be the first one in my mind get into表示“参加,加入”的用法?请详细说明并配有例句,还有 be/get involved in 、 be/get involved with 表示“参加,加入”时的用法和例句. 有一个句子英文打乱了是 my,this,first,in,to,be,time,is,Guangzhou.可以组成啥句子.知道的请回答, 英语翻译What time is the first place to stay in bed and the first place to be able the other hand and then you 请翻译,不要用百度翻译来蒙我 请大虾指教数学建模!第一次参加什么都还不知道,请详细指教,.. what is the first date in most diaries什么是最日记的第一次约会 Can vegtables be p_ in winter? Yes,but a greenhouse must be b_ first what may first appear to be economical ,may not in reality ,be accurate?翻译 there---(be)the first Olympic Games in Brazil in 2016填什么?为什么这么填? there---(be)the first Olympic Games in Brazil in 2016填什么?为什么这么填? 在线翻译英文：这是我第一次参加英语演讲比赛,请多多指教. you are on your own for what might be the first time in your life.请帮忙划分下这句的句子成分?you are on your own for what might be the first time in your life.尤其是for what 的关系?