Quiz — Grammaire : Modaux — Obligation, conseil et déduction

Question 1

Which sentence correctly uses 'mustn't' to express a prohibition in this context? 'You _____ eat in the library—it's against the rules!'

Accepted Answer

mustn't

Answer

don't have to

Answer

shouldn't

Answer

couldn't

Question 2

Which sentence correctly uses 'must' to express a strong obligation in a formal context?

Accepted Answer

She must arrive before 9 AM at the latest.

Answer

You must to wear a tie if you attend the meeting tomorrow.

Answer

We must don't forget to lock the door when we leave.

Answer

They musts hand in their reports by Friday afternoon.

Question 3

Find the error in this sentence: 'You don’t must wear a jacket if it’s not cold.'

Accepted Answer

don’t must

Answer

wear

Answer

a jacket

Answer

if it’s not cold

Question 4

Which sentence uses 'should' correctly to give advice? 'About your revision for the English test,'

Accepted Answer

You should start earlier to avoid last-minute stress.

Answer

You must start earlier to avoid last-minute stress.

Answer

You might start earlier to avoid last-minute stress.

Answer

You have to start earlier to avoid last-minute stress.

Question 5

Which of the following sentences correctly uses 'should' to give advice about space exploration?

Accepted Answer

You should reduce your carbon footprint to protect Earth.

Answer

You should to reduce your carbon footprint to protect Earth.

Answer

You have to reduce your carbon footprint to protect Earth.

Answer

You must reduce your carbon footprint to protect Earth.

Grammaire : Modaux — Obligation, conseil et déduction