依次填入下面一段横线处的语句最恰当的句子是人类并非像想象的那样脆弱，紧张的确是生活中不可缺少的部分。____________。生活在战争期间的人，发病率明显低于生活在和平环境中的人。这是由于人们在战争环境中精神紧张、生活积极、进取心强，所以长期充满活力，抗病能力也随之增强。

Where____Chongqing do you decide to build the factory?— Nobody ____our manager knows .[ ]

You were ______ to take your shoes off when you entered the school club, but you didn’t.

Have you ever seen any trees ________ leaves were black because of the polluted air?

How long is it _____ you picked up your badmintontraining — It was not until my finance became better inlast December _____ I started the training.