rather difficult to make friends with, but the friendship of his, _____, is truer than that of anybody else’s.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ）当下，有人觉得反腐太严，感叹“官不聊生”。有这些想法的人的出发点是错误的。___________。___________。__________。__________，__________。__________，这个典故包含着深刻的兴衰治乱之理。①他却认为，秦以无道，政苛民怨，高祖因之，可以弘济②诸葛亮治蜀时，颇尚严峻，人多怨叹③知古可以鉴今④而如今“德政不举，威刑不肃”⑤有人劝他学习汉高祖约法三章，“缓刑弛禁以慰其望”⑥所以，应当“威之以法，限之以爵”

I heard Lucy ________ happily in her room when Ipassed her house.

I was lucky enough to get on the train before it ________.

Criticism and self-criticism is necessary _____ it helps us to correct our mistakes