Grammar Smart 3rd Edition - Princeton Review 2014

B. The Question Mark
PART 4. Punctuation

A question mark signals that the preceding statement is a question.

Rules For Question Marks

1. Use a question mark at the end of a question sentence.

Wherefore art thou, Romeo?

Is it love?

2. If the question is a quotation, put quotation marks after the question mark.

He asked, “May I have this dance?”

“How do I look?” she asked.

3. If the question is not part of the quotation, put the question mark after the quotation marks.

What do you think of “No new taxes”?

Do you believe in “an eye for an eye”?