Question

make this text more descriptive.
kelly paced back and forth. \what shall i do?\ she said.
which word should be added?

sings

worriedly

thin

jump

Explanation:

The sentence is about Kelly's mental state (paced back and forth, thinking "What shall I do?"). We need an adverb to describe how she thought. "Worriedly" is an adverb meaning in a worried manner, which fits the context of her being concerned. "Strong" is an adjective, "Run" and "Jump" are verbs, so they don't fit to describe the thinking action.

Answer:

B. worriedly