The man _____ was a friend of mine. [ ]

依次填入下列各句横线处的成语，最恰当的一组是 （ ）①但他人谁会想到他为了争一点无聊的名声，竟肯如此_______________，无所不至呢。②资本家之间也都明争暗斗，________________，相互倾轧。③美国“棱镜门”事件泄密者斯诺登选择俄罗斯避难最安全，因为在莫斯科，美国的情报机构 __________，无法动他一根汗毛。

Jane really cares what others say about her.—No wonder she is always ________.

________ do you feel when you leave your mum and dad— I feel a bit sad.

It was not until she got home ____ Jennifer realized she had lost her keys. [ ]