阅读并理解经典故事片段 — 英语填空题
题目
阅读故事片段，完成句子。A crow found a piece of bread and held it in her beak. A fox wanted the bread. He praised the crow’s voice and asked her to sing. The crow felt happy and began to sing. The bread fell to the ground, and the fox took it away. The bread fell because the crow ___.