3 – Now read this statement and answer the following question.

I According to the campaigns, we mustn’t kill animals to be fashionable.


What does the word mustn’t indicate in this case?


a) That something isn’t necessary.


b) That something is either prohibited or not the right thing to do.





We use must + verb to express obligation, necessity, certainty, or logical conclusion. If you use must

in the negative (must not = mustn’t), you are expressing prohibition or that the action isn’t the right

thing to do.​