Must and mustn't

You ______ be quiet because dad is taking a nap.

• must

• mustn't

Arthur ________ go shopping. His fridge is empty!

• must

• mustn't

Remember that you _________ take a selfie in class.

• must

• mustn't

Drivers __________ stop because kids are crossing.

• must

• mustn't

Ben, you __________ drive if you are drunk. It is illegal!

• must

• mustn't

A teacher _______ be a patient person.

• must

• mustn't

You _________ tell my secret to everybody.

• must

• mustn't

You __________ fasten your seat belt in a car.

• must

• mustn't

You __________ eat junk food too often.

• must

• mustn't

Students __________ forget their homework.

• must

• mustn't