圆内接平行四边形一定是 A．正方形 B．菱形 C．等腰梯形 D．矩形

先阅读短文，然后用下面方框中所给的单词或短语填空，使全文在逻辑上正确。

upset/ thought/did wrong/found out/ else/other

Dear Mary,
I have a problem, and I need your help. I always   小题1: I was popular at school. But I just  小题2:  that my friends were planning a birthday party for my best friend, and they don’t invite me. Everyone  小题3: in my class was invited except me, and I don’t know why. I can’t think what I   小题4: . I am very     小题5: and don’t know what to do. What do you think? Can you help me?
Yours
Lonely Kid.