Question

What action did merle suggest should be taken about their answer papers? Was she correct question mark would you have done the same?

Answer 1

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They are called rhetorical questions because they don't require or expect an answer. Many should be written without question marks. Examples: Why don't you take a break.

Answer 2

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Put a question mark at the end of a sentence that is, in fact, a direct question. (Sometimes writers will simply forget.) Rhetorical questions (asked when an answer is not really expected), by the way, are questions and deserve to end with a question mark: How else should we end them, after all?