询问情绪原因及回答（Why/Because） — 英语填空题
题目
读一读，补全短文（每空一词）。Anna lost her favourite toy bear this morning. She is crying. Her mother asks: "1.___ are you crying, Anna?" Anna says: "2.___ I lost my toy bear." In the afternoon, her father finds the bear under the bed. Now Anna is very 3.___.