at the first time和for the first time有什么区别

the first time 和at the first time和for the first time的区别 for the first time和the first time和at the first time有什么区别? 求in the first time和at the first time 、for the first time的区别~ the first time 和at the first time有什么区别 at the first time和for the first time有什么区别 区分一下for the first time 和at the first time 的区别, at the first time和for the first time的区别 200分-Is it ____ that you _____ the city?-No.Once a year at least.A.for the first time;visit B.the first time;visitC.for the first time;visited D.the first time;have visited.还原D：It is the first time you have visited the city.还原A：It is fo at first time 和for the first time 有什么区别 用for.the.first.time和at.first 和it.was.the.first.time和the.first.time各造一个句子,说明她们的区别 first of all,first,at first,for the first time,the first time有什么区别 the first time/at the first time/ for the first time the first time ,at the first time,in the first time 哪个正确 at the first time 与for the first time 与in the first time的区别 At the first time、The first time、For the first time 、On the first time的区别 讲解first和at first的区别.（ ）he was afraid to take the airplane.A.First B.At first C.Firstly D.First time at first 和at first time的区别 at the first time t与he first at the first time t与he first time区别?