She has just boiled an egg.She has never been to
问题描述：
She has just boiled an egg.She has never been to
She has just boiled an egg.
She has never been to China.
He has already painted that bookcase.
在这3个现在完成时的句子中,副词just ,never already,为什么放在句中这样的位置,放其他地方不行吗?
答
这三个副词用于be动词,助动词和情态动词后,实义动词前 .为什么要这样？语法书上有讲不？哪里有说？有很多这样的副词，语法书上有讲，但不一定讲到的是这几个，一般都是这样用，像这样的词还有：both，never等频度副词。