询问情绪原因及回答（Why/Because） — 英语词汇题
题目
读对话，从方框中选词并用其正确形式补全句子，每词限用一次。方框：happy, worried, because, Why, sad。对话：Amy: You look 1.______ today. 2.______ are you sad? Lily: 3.______ my cat is ill. Amy: Don't be 4.______. The vet (兽医) can help it. Lily: Thank you! Now I feel a little 5.______. 请写出1-5处的单词。