Rewrite the sentence to eliminate ambiguous, remote, or broad reference. Over the summer Frank learned a lot about installing and repairing computers. In fact, it changed his career path.

Frank changed his career path by learning about installing and repairing computers with classes he took over the summer.

Explanation:

It goes to the point that Frank changed his career with classes. "Over the summer" is not really relative to the topic, it just happens to be when he learned.

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