Final answer:
To clarify the meaning of the sentence, you can rewrite it as 'She went to visit the theater at her old school, assuming it was still there, but to her dismay, it had been removed.'
Step-by-step explanation:
To clarify the meaning of the sentence "she went to visit the theater at her old school, but it was gone," you can rewrite it as "She went to visit the theater at her old school, assuming it was still there, but to her dismay, it had been removed." This conveys that the theater was expected to be present but was discovered to be missing.
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