语法总结
whether 引导宾语从句
whether my pictures are good or not 表示“我的画好不好”，whether 后是完整从句。
相似句：
- I don't know whether he will come.
- She asked whether it was true or not.
过去进行时的对话场景
What are you doing? / I'm hanging... 用现在进行时呈现当下动作，直接引出结尾的反转。
相似句：
- What are you reading?
- I am putting the picture on the wall.