At the stationer’s.

At the stationer’s. at were on we the August Stationer's 15th ①填空the lady __ at the stationer's .she ___ some envelopes .s 1.We were at the stationer's on Monday.变一般疑问句 （ 关于英语用in on at填空we were __ the stationer's __Monday.They were at the meat s at the uncle's 和at the barber's是什么意思? at the doctor's造句 Lt's at the cinema. It's at the stadium She's( )at the moment. at the butcher’s 为何要加撇s