Two visits to the same exhibition
1A local history center arranged two visits to its new exhibition on Saturday. In the morning, registered members of a school history club joined a workshop. They entered through the side door because the main entrance was still being prepared for the afternoon opening. The workshop used copies of old letters. The original letters remained in locked cases, and no visitor was allowed to handle them.
2During the workshop, only the registered members handled the copies. They compared handwriting and discussed how a letter could reveal something about everyday life. The guide reminded them that a copied document could support a historical question without exposing the original to damage. The club members finished their work before noon and returned all the copies to the guide. The passage does not say where the guide was born or how long she had worked at the center.
3In the afternoon, the exhibition opened to the general public through the main entrance. Visitors could look at the original letters inside their cases, but they did not handle the workshop copies. A student later summarized the day by writing that registered members had handled the copies in the afternoon. To repair the sentence, she changed only the time expression. The people, action, and materials in her sentence had already matched the account. She then checked the complete sentence again, knowing that a small correction was useful only if every remaining detail was still supported by the passage.