The Science Museum is popular because people _____ do experiments there.

In order to make up for the lost time, they are working ______

填入下面一段文字横线处的语句，最恰当的一句是（ ）追求成功是一种态度，让这种态度趋于理性平和而不是虚浮躁动，与驾驭心态的能力紧密相关。 。因为人生一世，草木一秋，不奢求完美，方可轻松；不迷失自我，才能幸福。一个人什么都可以缺，就是不能缺少参透得失的明心。

(2017·北京)Many airlines now allow passengers to print their boarding passes online ________ their valuable time.

Studies show that kids living and studying in a harmonious environment are less likely to become .