Evdence has been found through years of studychildren’s early sleeping problem are likely to continue when they grow up.

－How soon will Miss Wang be back－She will be back __________ six days.

排列下面几个句子，组成语意连贯的一段话，衔接最恰当的一项是我们的生命是短暂的，但这短暂的生命也是过于拥挤了。 那么，这岂不证明，当我们怅然徘徊的时候，我们是领受了更为充足的阳光和空气①突然，这里有了一块空地。②我们的日程表排得满满的。③我们无事可做，无人作伴，只好在这空地上徘徊。④在屋顶覆盖和行人密集的地方，是不会有青草生长的。⑤我们看见脚下有青草破土而出，感觉到心中有一种情绪也像青草一样滋生。⑥我们把太多的光阴抛洒在繁忙的工场里和喧闹的市场上，太热心于做事和交际。

The girl is greatly interested in the song. The lyrics of it ________ her thoughts and feelings.

Our teacher often tells us only by working hard every day_____ a better university at last.[ ]