硪正要出去,这是邻居来敲门用英语when怎么说

Question

硪正要出去,这是邻居来敲门 用英语when怎么说

Answer 1

when用作从属连词,意为“还没 / 刚刚……就”,引导时间状语从句.例如：
I had hardly opened the door when he came in.我刚一开门,他就进来了
I had not been reading for half an hour when I heard someone call my name.我刚刚看了半个小时的书,就听到有人叫我的名字.
所以此题正解为：I was going out when the neighbour came to knocked at the door.