Must = rule
Should = advice

Exercise 1 — Alternative Choice

Choose the correct modal verb.

1. You ___ do your homework every day.

• should
• must

1. You ___ brush your teeth twice a day.

• should
• must

1. You ___ eat more vegetables.

• should
• must

1. We ___ be quiet in the library.

• should
• must

1. You ___ help your parents.

• should
• must

🔗 Exercise 2 — Matching

Match the rule with the place.

Rule

Place

Be quiet

library

Wear a helmet

bike

Wash your hands

bathroom

Listen to the teacher

classroom

Stop at red light

road

Exercise 3 — Transformation

 Rewrite using should or must.

Example:
It is a good idea to sleep early. → You should sleep early.

1. It is necessary to wear a seatbelt.
   → You __________ wear a seatbelt.
2. It is a good idea to drink water.
   → You __________ drink water.
3. It is necessary to do homework.
   → You __________ do homework.
4. It is a good idea to help friends.
   → You __________ help friends.