改错That is very difficult to study two foreign languages at the same time改错 That is very difficult to study two foreign languages at the same time
问题描述：
改错That is very difficult to study two foreign languages at the same time
改错 That is very difficult to study two foreign languages at the same time
答
It is very difficult to study two foreign languages at the same time
答
把That改为It
这是一个为了平衡句子，其实后面不定式才是真正的主语
答
It is very difficult to study two foreign languages at the same time.改rhat为it,希望采纳,谢谢