You ____ do more exercise. It's good for your health. You look tired. I think you ____ take a few days off to relax. Students ____ come to school on time. She ____be quiet in a library. It's a rule. You ____ wear a uniform at school. ____ I go to the dentist? I have a toothache. Jenn ____ wear purple clothes more often, she looks so beautiful. We ____try this fried chicken. It tastes awful!

Modals: Must or Should?

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