Final answer:
The subject of the question is English and the question is about the usage of a verb in a sentence.
Step-by-step explanation:
The subject of the question is English because it is asking about the usage and understanding of language in a sentence.
The sentence is describing kittens being frightened by a dog, and the blank space is where the verb should be.
An example of a verb that could fill in the blank is huddled. So the sentence would be:
The kittens huddled in the corner, frightened by the huge, growling dog.
Other possible verbs that could fit in the blank include cowered, shivered, or trembled.