补全对话。
Lingling: Mum, I want a T-shirt. My old T-shirt is too . I want a
big one.
Mum: OK. Let's buy a T-shirt this afternoon. What are you doing now, Lingling?
Lingling: I am drawing a picture for Dad's birthday. But I can't draw very well. It's for me. Can you help me,Amy?You can draw . It's for you.
Amy: Of course. I am coming.