一枚小小的大头针比最小的砝码的质量都要轻，那我们该如何利用天平去测量一枚大头针的质量？请运用所学知识具体说明做法．

根据句子意思，用括号中所给词的正确形式填空，每空填一词。

小题1:The little girl knows some English words but pronounces them ____________ (correct).

小题2:Many cities in North of China are ____________ (fog) these days than before.

小题3:--- Whose wallet is it?

--- Maybe it’s one of the ____________ (organize). Only they came here just now.

小题4:Thanks to your kind ____________ (donate), I get a chance to go to school.