Question

Errors in the use of punctuation marks - Use of Quotation Marks and Terminal Punctuation
Answer

Several universities in the city offer the following degrees: B.A., M.A., Ph.D.

Must students write a research paper and pass a written examination in order to receive an M.A.?

Fasten your seat belt.

The unspoken questions were when would he return and how long would she be willing to wait for him?

Answer 1

If you have posted sentences that you corrected, you've done well. Only one bothers me; the third sentence reads awkwardly and does not need a question mark at the end. You have included indirect questions in that sentence, but the entire sentence is not a question.

The third sentence would be better written like this:

There were unspoken questions: When would he return? How long would she be willing to wait for him?