Question

which sentence contains a punctuation error? after completing his research paper john submitted it to his teacher. the museum, which was recently renovated, reopened to the public yesterday. \will you be attending the conference next week?\ she asked. the committee discussed three proposals: funding, scheduling, and staffing.

Explanation:

To determine the sentence with a punctuation error, we analyze each option:

• The orange sentence: "After completing his research paper John submitted it to his teacher." This is a run - on sentence. The phrase "After completing his research paper" is an introductory clause, and there should be a comma after "paper" to separate it from the main clause "John submitted it to his teacher."
• The blue sentence: "The museum, which was recently renovated, reopened to the public yesterday." The commas around the non - restrictive clause "which was recently renovated" are used correctly.
• The green sentence: "Will you be attending the conference next week?" she asked. The punctuation for the direct quotation and the tag "she asked" is correct.
• The red sentence: "The committee discussed three proposals: funding, scheduling, and staffing." The colon is used correctly to introduce the list of proposals, and the commas in the list are also correct.

Answer:

A. After completing his research paper John submitted it to his teacher.