Faulty parallelism in the sentence provided can be fixed by ensuring all listed activities follow a parallel structure.
Faulty parallelism occurs when elements in a sentence lack consistent structure or form. In the sentence given, the phrase "old movies on video" should be revised to maintain parallel structure. An example of a corrected sentence could be: "When vacation time comes, we'll take long walks, go swimming, watch old movies on video, and play board games." By making all activities in the list follow the same structure, the sentence is parallel.
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