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.

yes this is an analog in my view

each morning i wrote my name

on the dusty cabinet, then crossed

the dining table in script, scrawled

in capitals on the backs of chairs,

practicing signatures like scales

while mother followed squirting

linseed from a burping can