Have to/don't have to/must/mustn't/needn't

The new Bond film is fantastic. You ..... see it!

• have to

• must

• need

• don't have to

Answer explanation

The correct choice is 'must' because it expresses a strong recommendation or necessity, indicating that seeing the new Bond film is highly recommended or necessary.

 This app is quite expensive because you .... pay extra for each new level.

• have to

• must

• need

• mustn't

Answer explanation

The correct choice is 'have to' because it indicates the necessity of paying extra for each new level in the app.

Wait! I ___ check whether I locked the door.

• must to

• have

• must

• need to

Answer explanation

The correct choice is 'must' because it is used to express necessity or obligation, indicating that the speaker needs to check whether the door is locked.

You ___cross the road when the red light is on.

• must

• mustn't

• have to

• needn't

Answer explanation

The correct choice is 'mustn't' because it indicates that you are not allowed to cross the road when the red light is on.

Students ___ cheat in the test.

• have to

• must

• mustn't

• needn't

Answer explanation

The correct choice is 'mustn't' because it indicates that students are not allowed to cheat in the test.

Jack lives far from school, so he ___ to take a bus every day to get there.

• has

• don't has

• don't have

• must

Answer explanation

The correct choice is 'has' because the sentence is in the present tense and 'has' is the correct form of the verb 'to have' for the third person singular subject 'Jack'.

You ___ make your bed. I’ll do it for you.

• have to

• don't have to

• needn't

• mustn't

Answer explanation

The correct choice is 'needn't' because it indicates that making the bed is not necessary, as someone else will do it for you.

You ___ burn fires in the forest.

• have to

• must

• mustn't

• needn't

Answer explanation

The correct choice is 'mustn't' because it indicates that you are not allowed to burn fires in the forest.

I ___ wake up early today. It's Sunday

• have to

• mustn't

• must

• needn't

Answer explanation

The correct choice is 'needn't' because on Sundays, there is no obligation to wake up early, so it is not necessary to do so.

It's raining cats and dogs outside! You ___ take your umbrella.

• must

• mustn't

• have to

• need

Answer explanation

In this context, 'must' is used to express a strong recommendation or necessity, indicating that taking an umbrella is essential due to heavy rain. 'Mustn't' would imply the opposite, 'have to' is less strong, and 'need' is not as appropriate in this situation.