Prices ________ all the time and no one knows when they ________ stable.[ ]

The small mountain village we spent our holiday last month lies inis now part of HUBEI.

They sometimes go on working ____ the light of the moon

下列诗句填入所给《早春南征寄洛中诸友》一诗横线处，恰当的一项是楚色穷千里，行人何苦赊。芳林逢旅雁，候馆噪山鸦。春入河边草， 。东风一樽酒，新岁独思家。

（ ）这个典故与曹操无关。