According to the context, it can be inferred that the missing words are: hand (1) and question (2).
To identify missing words, the context must be taken into account. In this case it can be associated with a classroom.
Generally in classrooms there is a rule that students do not interrupt their teacher when they have questions. what they should do is raise their hand to ask any questions that may arise.
According to the above, it can be inferred that the missing words are:
Learn more about school in: https://brainly.com/question/27601494
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