at the first,the words didn't mean anything____ Helen.用介词与副词填空.解释为什么.

at the first crossing first of all first the first at first的区别 at the first,at first与first的区别 sign at the first desk first of all,first,at first,for the first time,the first time有什么区别 比较first,at first,in the first placethank you~ love at first sight 还是 love at the first sight at the first 与 at first的区别 高手帮忙at first sight还是at THE first sight? at the first floor还是on the first floor in the first year和at the first year 翻译 I think I am old enough to choose friends for myself.They are the first group to win the show.Student may have some troubles at school or at home.But they feel great to sing on the stage, meet their fans and stay with each other.Your heart wor They were at the zoo at the first time 改错 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? on the first day还是in the first day还是at the first? the first time/at the first time/ for the first time 求in the first time和at the first time 、for the first time的区别~