A、為客人引路應走在客人一側,距離客人一米左右,行走的速度不宜太快,每走五六步回頭照看一下客人 B、為客人引路應走在客人右前方,距離客人一至二步遠,行走的速度不宜太快,每走五六步回頭照看一下客人 C、為客人引路應走在客人正前方,距離客人三至四步遠,行走的速度不宜太快,每走五六步回頭照看一下客人 D、為客人引路應走在客人左前方,距離客人二至三步遠,行走的速度不宜太快,每走五六步回頭照看一下客人
A、Be careful not to leave anything behind B、Sorry to have kept you waiting C、Be careful not to leave D、Do not leave anything
A、Is this for washing? B、This is for washing? C、Is this for clean? D、This is for clean?