He told them to SIMMER DOWN because they were disturbing the class next door.
Become less excited, noisy or angry,
The teacher told the class to SIMMER DOWN.
UsingEnglish.com is partnering with Gymglish to give you a free one-month trial of this
excellent online English training course. Activate your free month of lessons (special offer for new
users, with no obligation to buy) - and receive a level assessment!