用方框所给出的选项完成对话。

[A middle school student and her mother are visiting the security education show(安全教育展)]

M: Come on, darling, so many pictures here!

S: ____  

M: Traffic safety.

S: Sounds boring.

M: ____ 

S: Maybe. Oh! Mum, look at this picture, a boy is hit a car when he is running across the road. ____ 

M: So it is!

S: ____  That helps us stay safe from danger.

M: Yes, better safe than sorry. Let's go to another hall to learn more about hot to protect ourselves.

S: ____  Let's go.