Obligation & Permission

Grammar · Practice

PracticeB2

must, have to, should and can — rules, advice and permission are not the same thing.

1Choose the best answer Tap an answer. You see why straight away.

Score: 0 / 10

1. You ___ wear a seatbelt in a car — it’s the law.

2. You ___ see a doctor if the pain continues — it’s good advice.

3. ___ I use your phone, please?

4. Employees ___ wear a uniform at this company — it’s a rule.

5. You ___ smoke in this building — it’s forbidden.

6. You ___ pay for parking on Sundays — it’s free that day.

7. Students ___ hand in their assignments by Friday.

8. You ___ be over 18 to buy alcohol here — it’s the law.

9. ___ I open the window? It’s a bit hot in here.

10. You ___ apologize — it wasn’t your fault, but it would be nice.

B — must. Must expresses a strong obligation or legal requirement.
B — should. Should expresses advice, not a strict obligation.
C — Can. Can is used to ask for permission informally.
B — have to. Have to expresses an external obligation or rule.
A — must not. Must not expresses prohibition.
C — don’t have to. Don’t have to means there is no obligation (but it isn’t forbidden).
A — have to. Have to expresses an obligation or requirement.
B — must. Must expresses a legal requirement.
C — May. May is used to politely ask for permission.
C — should. Should expresses gentle advice, not obligation.

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