However difficult English is,I will learn it well.
问题描述:
However difficult English is,I will learn it well.
A However difficult English is B No matter how difficult is English 为什么选A不选B
答
B的话应该改成NO matter how difficult English is.你的B项is位置放反了.空格, he would have been able to pass the exam. C.Had he studied harderD.Should he study harder 为什么D不行__no air ,there would be no sound.为什么是were there不是was there
should he study harder这是立足于现在,对将来的虚拟。而题干是would have been这是对过去的虚拟,所以时态用的是过去完成时。
因为存在空气,所以是虚拟假设不存在空气,用were there,不用was,was不是虚拟。