看图补全对话。
Tom: Hello, this is Tom speaking.
Grandma: Hi, Tom, this is grandma. What is your mother doing?
Tom: My mother is c_____________.
Grandma: What is your father doing?
Tom: My father is s_____________ on the sofa.
Grandma: What are you doing, Tom?
Tom: I am d_____________ my homework.
Grandma: Good boy! What are Peter and Cindy doing?
Tom: Peter is d_____________ on the wall (墙壁) and Cindy is c_____________.
Grandma: Oh, my goodness (天哪)!
