Must = rule
Should = advice
Exercise 1 — Alternative Choice
Choose the correct modal verb.
- You ___ do your homework every day.
- You ___ brush your teeth twice a day.
- You ___ eat more vegetables.
- We ___ be quiet in the library.
- You ___ help your parents.
🔗 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.
- It is necessary to wear a seatbelt.
→ You __________ wear a seatbelt.
- It is a good idea to drink water.
→ You __________ drink water.
- It is necessary to do homework.
→ You __________ do homework.
- It is a good idea to help friends.
→ You __________ help friends.