They are__little children __ they can't understand their parents.应填so..that 还是such..that?
我感觉2个应该都可以填的,我也知道so是副词,修饰形容词；such是形容词,修饰名词.
我的理解是so little a child=such a little child ,
在将a child变成复数children时,那么so little children =such little children了.
最后答案给出了such..that.请不要单单给出答案,我需要详细的有说服力的讲解和推理.