Complete the sentences with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子。每空格限填一词）
【小题1】Those two firemen saved a boy from the burning building but lost their ________. (life)
【小题2】Children, don’t play with fire, or you’ll hurt ________. (you)
【小题3】The man escaped from the prison to search for ________. (free)
【小题4】Many people choose organic (有机的) vegetables because they are ________ to our body. (harmful)
【小题5】The modern fashion in education is to let the child ________ everything on their own. (decision)