Final answer:
The young girl sings exceptionally well and her performance was astonishing, with the use of adverbs and adjectives highlighting her notable talent in singing.
Step-by-step explanation:
The young girl sings exceptionally well for someone her age. Her performance was astonishing to say the least. The student's question requires the use of adverbs and adjectives to describe how well the young girl sings and the quality of her performance. Given her youth and the reactions of others, which range from admiration to being moved, it's clear that her talents are noteworthy and her future in singing prominent. Characters in the provided texts are similarly struck by her abilities, underscoring the use of strong positive language to fill in the blanks.