高中英语：虚拟语气 求解释

1.He is talking so much about America as if he ( )there Ahad been B has been C was D has gone 答案：A 2.What should we do if it ( )tomorrow? A should snowB would snow C snow D will snow 答案：A 3.You ( )such a serious mistake i... 1.He is talking so much about America as if he ( )there Ahad been B has been C was D has gone 答案：A 2.What should we do if it ( )tomorrow? A should snowB would snow C snow D will snow 答案：A 3.You ( )such a serious mistake if you had followed his advice. A shouldn't have made B might not have made 答案：B 4.If it were not for the fact that you ( ) ill ,I would ask you to do this right now. Awere B are 答案：B 5.even if ,even though 引导 让步状语 句 弄 展开

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