What a gift you've brought me! You are so kind, but you _______ so.A. shouldn't doB. needn't doC. couldn't have doneD. needn't have done答案是D 我选了B请亲分析下 谢谢
參考答案:首先解释下这句话的意思：你带来给我的礼物真的很棒！你真的很贴心，你本不需要送的。事实上他已经送了礼物，不需要这句话就是虚拟的，。虚拟语气就是假设的。虚拟语气就有种形式sould have done|could have done|ought have done |……所以选择符合含义的B选项。即使按照淘汰法，也先就淘汰前两个选项。