题目

—You look really ________, Ann. What's wrong?—Well, I lost my ticket for the concert.A.bored B.smooth C.down D.happy 答案：【答案】C【解析】句意：——安，你看起来很沮丧。发生什么事了？——我把音乐会的门票弄丢了。考查形容词辨析。bored厌倦的，烦闷的；smooth平静的；down沮丧的，低落的；happy开心的。根据答语“I lost my ticket for the concert”可知，此时Ann看起来很沮丧。故选C。点P(1,-2)关于y轴对称的点P'的坐标为__.