I am Brad. I like scary movies and action movies. My favorite movie star is Jackie Chan. I think Jackie Chan is a great actor. He has a movie Who am I? It's a very successful action movie. It's exciting.

    My name is Kelly. I am a girl. I like comedies and soap operas, but I don't like scary movies. I think they are scary. I think Beijing Opera is educational. On weekend, I often go to see it with my father. I can learn a lot about Chinese history.

    I am Carlos. My favorite cartoon star is Mickey. I think Mickey Mouse is a great cartoon. I also like scary movies. I think they are very exciting.

    I'm a girl. My name is Mary. On weekends, I often watch cartoons and talent shows on TV. I think they are wonderful and relaxing. I don't like sitcoms. They are boring.

碱

酸

盐

碱性氧化物

酸性氧化物

A

氨气

硫酸

小苏打

氧化钙

干冰

B

苛性钠

盐酸

食盐

氧化钠

一氧化碳

C

石灰水

冰醋酸（CH₃COOH）

胆矾

CuSO₄•5H₂O

 氧化镁

二氧化硫

D

一水合氨

HNO₃

碳酸钙

氧化铁

SO₃