Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

When did lecturers no The Harvard Crimson publish its first issue?
When did The Harvard Crimson publish its first issue?

For how many years had sea levels been studied in the 2001 report no temperatures?
For how many years had temperatures been studied in the 2001 report?

How or no make that what characteristics did the common ancestor of lagerstatten have?

What characteristics did the common ancestor of lagerstatten have?