将下列词改成表示状态的名词

问题描述:

将下列词改成表示状态的名词
invent decide direct
move dark happy
sad introduce graduate
ill busy advise
kind honest difficult

invent invention
decide decision
direct direction
move movement
dark darkness
happy happiness
sad sadness
introduce introduction
graduate graduation
ill illness
busy business
advise advice
kind kindness
honest honesty
difficult difficulty