Final answer:
The correct verb to fill in the sentence 'She is ____________ a great time at the dance' is 'having'. This helping verb portrays the action the subject, 'She', is performing.
Step-by-step explanation:
In the given sentence, a helping verb or a verb is required to complete the sentence properly. The correct answer is 'having'. The sentence should read: 'She is having a great time at the dance.' The word 'having' is a helping verb that connects the subject of the sentence (She) to the rest of the sentence. It describes the action that the subject is doing - in this case, enjoying a great time.
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