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。
小题1:Jack is so (急躁的) that he is always angry with others easily.
小题2:I will give you some (建议) ，I’m sure they will be useful .
小题3:What important (决定) you have made !
小题4:The therapy was ___________ (证明)to be false by this scientist.
