英语语法分析,虚拟语气The millions of calculations involved,had they been done by hand,all practical value would have lost by the time they were finished.为什么这句话是虚拟语气,为什么had they been done by hand 要倒装
问题描述:
英语语法分析,虚拟语气
The millions of calculations involved,had they been done by hand,all practical value would have lost by the time they were finished.
为什么这句话是虚拟语气,为什么had they been done by hand 要倒装
答
(If )they had been done by hand 省略了If作状语