第三节完型填空（共20小题；每小题1．5分，满分30分）
阅读下面短文，掌握其大意，然后从21—40各题所给的四个选项（A、B、C和D）中，选出最佳选项。
Once upon a time, there lived many doves (鸽子) in the jungle．One day they went out in search of food．They flew long distances 21 did not get anything to eat．All of them were now 22 _ ．
A young dove asked the King Dove, "Your Majesty, please 23 us to take some rest．"
