同学你好，该知识点来自沪江网校《2023年11月CATTI笔译二级【韩刚签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好
1.It is because closing our national door and being haughty led to the wretched experience for us to suffer during modern time
首先it is...that...是强调句，that不能省；其次，because引导从句，后面要跟一个句子哦~而且because和led to重复使用，可以删去一个；
如：It is closing our national door and being haughty that led to the wretched experience for us to suffer during modern time
It is  because of closing our national door and being haughty that we suffered the wretched experience during modern time

2.choosing注意拼写
希望对同学有帮助~