用适当的连词填空,关于had(just)done..when..刚做完…这时…的用法.

题目

用适当的连词填空,关于had(just)done..when..刚做完…这时…的用法.
I had gone only a few steps _____ I realized that my greeting had been impolite.
It was only ____ I has turned the corner of the street that I realized,too late,that his name was Tony and the time was late afternoon.
=Only _____ I has turned the corner of the street,I realized,too late,that his name was Tony and the time was late afternoon.
为什么第一个填before,第二个填when,第一个不可以填before吗?

答案

这是两个不同的句型1、如果要表示“刚一…就”,要用had (just / hardly / scarcely )done … when (或before) … 句型.第一个句子表达的就是这种意思,空白处既可以用 when 也可以用 before,其结构如下：　　主句：Ih...