3 Use the video explanation to circle the correct alternative for the rules.
1.We use the main verb before/after modal verbs.
2 We use must to/must for obligation.
3 Do/Do not add -s to the modal verb in the third person.
4 Use don't doesn't with have to/must for negative forms.
Ответы
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Ответ: 4
Use don't doesn't with have to/must for negative forms.
Приложения:
![](https://st.uroker.com/files/4f7/4f7637f984b8f6bb9efca2b019d05584.jpg)
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