Vocabulary consisting only from characters you are able to read
練る
ねる
(1)to knead, to work over, (2)to polish up (e.g. a plan), (3)to drill, to train godan, verb, vtrans
課題
かだい
subject/theme/task/challenge/issue/matter/(P)jlpt3, leda1
働き
はたらき
(1)work, labor, labour, (2)achievement, performance, ability, talent, (3)salary, income, earnings, (4)action, activity, workings, function, operation, movement, motion, (5)(ling) conjugation, inf jlpt3
試練
しれん
test, trial, probation, ordeal, tribulationmix