Read the Recycle! box. Then complete the sentences with the correct form of must, mustn’t, have to and don’t have to. (Đọc phần Recycle! Và hoàn thành các câu với dạng đúng của must, must’t, have to và don’t have to.)

1. The trainer tells the marathon runners that they ________ eat lots of carbohydrates, but that they ________ eat fast food.

2. The speaker has coeliac disease, so he ________ buy gluten-free food. But he ________ go to special shops; he can find it at the supermarket.

3. The man’s doctor warned him that he ________ start eating more healthily.

4. According to the speaker, people ________ count how many calories they eat. There are apps to do it for them.