把对话补充完整。

A、That's lovely . B、Tomorrow is Flag Day . C、Thanksgiving is my favourite festival . D、We fly the flag and we sing songs . E、What do you do on Thanksgiving Day ?

Simon: Look , Daming .

Daming: What do you do on Flag Day ?

Simon:

Daming: Can you tell me more about American festival , Simon ?

Simon: Well .

Daming:

Simon: We always have a special meal . It's a big family dinner .

Daming: