依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ）海啸是一种灾难性的海浪，通常由震源在海底下50千米以内、里氏震级6．5以上的海底地震引起。水下或沿岸山崩或火山爆发也可能引起海啸。在一次震动之后，＿＿，＿＿，＿＿。＿＿，＿＿，＿＿，波都可以传播过去。①正象卵石掉进浅池里产生的波一样 ②海啸波长比海洋的最大深度还要大③不管海洋深度如何 ④震荡波在海面上以不断扩大的圆圈⑤轨道运动在海底附近也没受多大阻滞 ⑥传播到很远的距离

difficult to tell exactly _______ the sayingbegan, but it is possible that it was in the theatre or movie industry

High school students should be given enough sleeping time , _______ they are busy with their study

In spite of all ________ has been said, quite a lot of people are still uncertain about the prices of housing in China.

23. —You started all the trouble. —But I didn’t to.