Review: Identifying Punctuation Errors, Answer 4.2

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Question:

Children sometimes knock at the Wilsons’ door, as if taunting the couple to show themselves, but neither the old man nor his sister ever answers.

Answer:

The answer incorrect is not correct.

Explanation:

Wilsons’ is the correct possessive form of the plural noun Wilsons. The first comma is needed before the parenthetical phrase as if taunting the couple to show themselves, as is the second before the co-ordinating conjunction but, which links the two independent clauses.