пожалуйста помогите придумать 4 предложения со словами must, I have to, mustn't, don't have to к этой картинке заранее огромное спасибо ❤️​

Ответ:

1. They must study to improve their knowledge.

2. They have to be hard-working to survive on the tropical island.

3. They mustn't litter on the island.

4. They don't have to behave badly with animals.

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