must / mustn’t, don’t have to, should / shouldn’t

You _____ feed the animals at the zoo.

• must

• mustn't

You _____ use your cell phone in school.

• must

• mustn't

You _____ work hard if you want to finish school with good grades.

• must

• mustn't

Andrew wants to be an actor. He _____ go to drama school.

• should

• shouldn't

James wants to be healthy. He _____ eat a lot of sweets.

• should

• shouldn't

My sister is scared of heights. She ______ climb trees.

• should

• shouldn't

You _______ do your best and get a good grade on your project.

• should

• shouldn't

• mustn't

Sarah doesn’t like hospitals. She _____ be a doctor.

• should

• mustn't

• shouldn't

My parents _______ do homework any more. They don't go to school!

• mustn't

• shouldn't

• don't have to

You _______ get up early if you don’t want to be late for school.

• shouldn't

• must

• don't have to