It takes us about ____ hour to get to theYangzhou-Taizhou Airport from Taizhou by ____ bus.

know, the coming ofradio in this century made ocean sailing much ______.

Her voice was shaking despite the fact________ she tried her best to control it

Mr Xie wants to know _________ for school this morning

_______ is even important is ______ as the earth cooled down, water began to appear on its surface.