I wrote down the date of his birthday lest I shoul

I wrote down the date of his birthday lest I shoul

虚拟句子用should. [A] 非常正规的英语句子才这样写: lest I should forget it[B] 非正规的英语句子(普通对话):(a) I wrote down the date of his birthday [so that] I [wouldn't] forget it.(b) I wrote down the date of his birthday [in case] I should forget it.======以下答案可供参考======供参考答案1:should是shall的过去式，我记下他的生日日期，以免我忘记。是写过去的事，用shall的过去式供参考答案2:lest后面的小句就是要用should结构的，这是个语法点。供参考答案3:首先说这是个考查虚拟语气的问题.lest'以免,以防,唯恐'的意思。用在虚拟语气中表示假设,谓语用'should 动词原形'的形式

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