She said she ____ her listening skills by listening to tapes.请用 develop 的适当形式填空,并且说出是什么时态.

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She said she ____ her listening skills by listening to tapes.请用 develop 的适当形式填空,并且说出是什么时态.
She said she ____ her listening skills by listening to tapes.
请用 develop 的适当形式填空,并且说出是什么时态.

She said she ____ her listening skills by listening to tapes.请用 develop 的适当形式填空,并且说出是什么时态.
She said she developed ____ her listening skills by listening to tapes
一般过去时

had developed 过去完成时。因为said是一般过去时,所以后面要用过去完成时。