关于介词的用法BY和for的用法
问题描述：
关于介词的用法BY和for的用法
we are surprised by he finished the work和we are surprised for he finished the work
这两句话有什么区别
答
两句都是病句,错得各有千秋
你可以这样说 we are surprised by him finishing the work so well
和we are surprised for what he has done here
for 和 by都是介词,后面接名词或者动名词,代词等,不能接从句