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МатематикаВопрос:
Fill in the gaps with have to, don't have to. 4. We ... do something to protect the environment.
Ответ:
Краткое пояснение:
- Выбираем между "have to" (должен, необходимо) и "don't have to" (не обязательно). Защита окружающей среды — это наша обязанность.
Пошаговое решение:
- 1. "have to" — указывает на моральную или фактическую обязанность.
Ответ: have to
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