【单选题】

There {{U}}56{{/U}} a king who had twelve beautiful daughters. They {{U}}57{{/U}} in twelve beds all in one room and when they went to bed, the {{U}}58{{/U}} were shut and locked up. {{U}}59{{/U}} , every morning {{U}}60{{/U}} shoes were found to be quite worn through as if they had been danced in all night. Nobody could {{U}}61{{/U}} how it happened, or {{U}}62{{/U}} the princesses had been.So the king made it {{U}}63{{/U}} to all that if any person could discover the {{U}}64{{/U}} and find out where it was that the princesses danced in the {{U}}65{{/U}} , he would have the {{U}}66{{/U}} he liked best to take as his wife, and would be king {{U}}67{{/U}} his death.But whoever tried and did not succeed, after three days and nights, would be {{U}}68{{/U}} to death.

A、prince from a nearby country soon came. He was well entertained, and in the evening was taken to the chamber (大房间) next {{U}}69{{/U}} the one where the princesses lay in their twelve {{U}}70{{/U}} . There he was to sit and {{U}}71{{/U}} where they went to dance; and, in order {{U}}72{{/U}} nothing could happen without him hearing it, the door of his {{U}}73{{/U}} was left open.But the prince soon went to sleep; and when, he {{U}}74{{/U}} in the morning he found that the princesses had all been dancing, {{U}}75{{/U}} the soles of their shoes were full of holes.
A、night
B．day
C．afternoon
D．morning