Question

add commas, semicolons, or colons if needed. otherwise, submit the text without any additional punctuation. when the hutchinsons purchased their home, it needed a new roof new siding and windows a new electrical system and new plumbing.

Explanation:

In a list of items, commas are used to separate the elements. Here, "new roof", "new siding and windows", "a new electrical system", and "new plumbing" are items in a list.

Answer:

When the Hutchinsons purchased their home, it needed a new roof, new siding and windows, a new electrical system, and new plumbing.