Rewrite the sentences using appropriate modal verbs 1)you aren't allowed to swim after you have eaten lunch. 2)don't eat too much junk food.it's my advice. 3)would you like me to bring you some hot tea? 4)is it ok for me to go home early? i don't feel well. 5)it's possible we will order takeaway later.

1) You mustn't swim after you have eaten lunch.
To rewrite this sentence, we can use the modal verb "mustn't" instead of "aren't allowed to." This modal verb is used to express prohibition. Therefore, the revised sentence would be, "You mustn't swim after you have eaten lunch."

2) You shouldn't eat too much junk food. It's my advice.
To rewrite this sentence, we can use the modal verb "shouldn't" instead of "don't." This modal verb is used to give advice or make recommendations. Therefore, the revised sentence would be, "You shouldn't eat too much junk food. It's my advice."

3) Would you like me to bring you some hot tea?
In this sentence, the modal verb "would" is already used correctly to express a polite request. Therefore, there is no need to rewrite this sentence.

4) May I go home early? I don't feel well.
To rewrite this sentence, we can use the modal verb "may" instead of "is it ok." This modal verb is used to ask for permission. Therefore, the revised sentence would be, "May I go home early? I don't feel well."

5) We might order takeaway later.
To rewrite this sentence, we can use the modal verb "might" instead of "it's possible." This modal verb is used to express possibility. Therefore, the revised sentence would be, "We might order takeaway later."