it is strange that sb should do与have done的区别意义与使用环境
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![it is strange that sb should do与have done的区别意义与使用环境](/uploads/image/z/4228084-28-4.jpg?t=it+is+strange+that+sb+should+do%E4%B8%8Ehave+done%E7%9A%84%E5%8C%BA%E5%88%AB%E6%84%8F%E4%B9%89%E4%B8%8E%E4%BD%BF%E7%94%A8%E7%8E%AF%E5%A2%83)
it is strange that sb should do与have done的区别意义与使用环境
it is strange that sb should do与have done的区别
意义与使用环境
it is strange that sb should do与have done的区别意义与使用环境
it is adj.+...+(should)+do 是一种虚拟语气的
而have done 是对已发生过的事情表示很strange
should do(表提出建议)还没有做某事 have done 在过去已完成了某事
就是句型it is strange that sb should do