四、摄影小能手
请你拍摄一段介绍自己和家人正在做什么的英语视频。以下是你的拍摄脚本,请你根据实际情况,将脚本补充完整。
Hello, everyone. This is my family. What are they doing?
• Dad: This is my dad. He is
• Mum:
• :
• :
• :

参考示例：
Dad: This is my dad. He is cleaning the car in the yard.
Mum: This is my mum. She is making cakes in the kitchen.
Grandma: This is my grandma. She is watching TV on the sofa.
Grandpa: This is my grandpa. He is watering the flowers in the garden.
Me: This is me. I am taking this video to introduce my happy family.

本题考查现在进行时的运用，现在进行时的基本结构为"主语+am/is/are+动词的现在分词"，用于描述当下正在发生的动作，我们可以结合日常家庭生活的常见场景，用符合四年级词汇量的简单表达补全内容，答案合理、语法正确即可。