Answer:
Textbook, Homework
Step-by-step explanation:
The domain of a sentence refers to the environment in which the action described in that sentence is happening. Because of this, we can conclude that the domain of the sentence shown in the question is the school environment.
Based on this reasoning, we can find the set of specific words of the domain, which are the words that refer directly to that environment, which in this case are the words "Textbook" and "Homework".