John and Anna face a sudden problem on stage. They must find the cause fast. They also clear up a small misunderstanding.
Vocabulary:
Emergency: A sudden and serious situation needing quick action.
Misunderstanding: A failure to understand something correctly.
Technician: A person who fixes technical problems.
Switch: A device to turn something on or off.
Teamwork: Working together to achieve a goal.
Practice more with this lesson:
