&：Try as he might ,he failed.为什么要用try as这种形式阿?

try as I might、i might as try、as i might try、might i as try, 一道英语题~~____, he failed in the end. A. Try as he did B. Tried He will try to save money as much as he can.改为同义句He will try Although he tried,he couldn't solve the problem.→Try as he m Try ____ she might,Sue couldn’t get the door open.为什么填as?语法上 try as she might ,Mary couldn't get the box Try as she might ,she could not open the door. means i try to keep him out of as much trouble as he inflict 让步状语从句?Try hard as he will,he never seems able to do the wor AS 的意思 和词性Try hard as he will,he never seems able to do the He did the experiment as he was told.为什么要用as?as在这是啥意思? He is as a good boy as Tim.为什么要用as a good boy as?