语法一：虚拟语气
一、If 引导从句
1. If I were you, I would go abroad to have the further study.2. If you had done your homework, you would not have been criticized by the teacher.3. If he were to / should come back from America tomorrow, he would join our party.4.If you had done your homework, you would not be criticized by your teacher now.
二、从句中（should）do 句型
He proposed that the girl (should) be the first to leave. suggest, propose, ask, command, demand, require, urge, order, recommend, insist2. It is my su ...