Huangmei Opera is very (popular among )old people
popular是 “受欢迎”的意思
among是 (表示范围）在.中
爱丽丝多大年龄了?What's Aliee’s age?
Aliee’s 是爱丽丝的 age是年龄还有几个问题，又补充了，请看一下……回答了 Lucy likes beef and tomato dumplings.对“beef and tomato"提问： What kind of dumplings does Lucy like？ （对种类提问，所以用What kind of ）黄梅戏在老年人中很受欢迎”。Huangmei Opera is very （popular with） old people.应该是with