The answer is the antagonist, which is basically the enemy/rival. Ex: in Harry Potter, Voldemort is the main antagonist
Bella is like a professional dancer on the stage.
The speaker is quite nervous.
Think of when people are married and sometimes one of the spouses gets "cold feet". It is not because they are sick or cold or even old. They are just nervous.
Answer:
Marco recycled the empty soda can.
