You must follow the rules

Listen and find the missing words :

Elijah: Wow! It so cool! It’s gonna be !
Leader: kids! Welcome to the Roller Coaster. Here are a few before you go.
First, you mustn’t remove your seat belt. It’s very !
Also, you mustn’t to get up... You must remain seated the whole time. Well, remember, you must follow these rules and will be fine! So kids, are you ready?
Elijah: Well, I’m not sure... I to go... No, I’m not...
Leader: Come on, be brave . Let’s go!
Elijah: hoooome! Aaaaaahhh!