Questão 3165585

Must expresses ability in both sentences, and meaning shifts because be tired refers to a state while hand in refers to an action that learners can perform.

Must expresses a strong suggestion in both sentences, and context changes tone, so the first reads as advice and the second as encouragement to meet a goal.

Must expresses future intention in both sentences, and the difference comes from time reference, so be tired signals a plan and hand in signals a scheduled event.

Must expresses probability in both sentences, and the second uses it to predict compliance, which frames the deadline as an inference rather than a requirement.

Must signals an inference with high certainty in the first sentence and an obligation tied to a rule or requirement in the second sentence, even with identical form.