根据句意和汉语注释，在答题卡标有题号的横线上，写出单词的正确形式。
Jack is so         (急躁的) that he is always angry with others easily.
I will give you some          (建议) ，I’m sure they will be useful .
What important        (决定) you have made !
The therapy was ___________ (证明)to be false by this scientist.