可以随便变形~

可以随便变形~
41.(increase) His hot temper was making it ______ difficult for others to work with him.42.(accurate) This information has to be altered if it is ______ or likely to cause damage or distress.43.(understand) The concept of arranged marriages is badly ______ in the west.44.(operation) There are ______ advantages in putting sales and admin in the same building.45.(curious) She decided to call her ex-boyfriend out of ______.46.(short) Patients were dying because of an acute ______ of nurses.47.(familiar) The goal of the experiment was to ______ the people with the new laws.48.(legal) Under French law,it is ______ to import dangerous waste,such as hospital rubbish.49.(profit) Drug manufacturing is the most ______ business in America.50.(suspicion) It's a bit ______ that no one knows where he was at the time of the murder.
43 为什么填understood？填个形容词不行么？