Rewrite the sentence to make the pronoun reference clear.

sally told sarah that she needed to work on her spelling.

Sally told Sarah that Sarah needed to work on her spelling.

Sally told Sarah that Sally needed to work on her spelling.

Sally told Sarah, "You need to work on your spelling."

Sally told Sarah, "I need to work on my spelling."

Explanation:

When the antecedent of a pronoun is not clear or is missing, the sentence can lead to confusion or ambiguity. In the example sentence, it is not clear who needs to work on her spelling- whether it is Sally or Sarah. The reason is that both have been previously mentioned before the pronoun she, so it is imprecise to determine who the pronoun she refers to.

as much wood as a woodchuck could chuck if a woodchuck could chuck wood.

sadly it cannot chuck wood

dickinson punctuation and lines in her poems to establish a rhythm. each reader will naturally find themselves reading the poem in the same way. she uses the repeating question marks and exclamation points to convey the passion in her words. shelley uses punctuation to paint a picture in the reader's mind. for example, the ellipses after "stand in the dessert" evoke a silence, as it would feel in a deserted, old place.