67%
Help the frantic baking instructor remind her students of the kitchen rules by choosing the correct phrase for each blank.
"Listen up, everyone! You _________________________ eat the raw eggs, unless you want a trip to the hospital! However, you _________________________ frost the cupcakes right this second—take your time and do it when they finally cool down."
The correct answers are mustn't and don't have to.
We use mustn't (must not) to express a strict prohibition—something you are absolutely not allowed to do.
We use don't have to to show a lack of obligation—meaning you can do it if you want, but it is not required.