填入下面横线处的语句，衔接最恰当的一项是 （ ）中国文化是尚群的文化。_____________________________①范仲淹所说“先天下之忧而忧，后天下之乐而乐”也体现了这种精神。②至于公和私的关系，应以公为先，人和己的关系，应以人为先。③小到家庭，大到国家、民族，都是群，而群就是公。④正如孔子所说：“君子贵人而贱己，先人而后己。” ⑤《礼记》中所说的“天下为公”，已经成为至理名言。

They ________ the trucks with boxes of food and sent the goods to the disaster areas in Sichuan province.[ ]

f the treatment _____, there’s still no magicpill for patients in the late stage of AIDS.

here is a _____ of understandingbetween them. Otherwise, they will be good friends.

He is rather difficult to make friendswith, but his friendship, _____ is more true than anyone else’s.