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.

What period er how did the Rhine extend watershed southward?
How did the Rhine extend watershed southward?

What percent of the European population did the black death kill?
How much of the European population did the black death kill?

What is the dispensary limited, oops, subject to in a minority of countries?

What is the dispensary subject to in a minority of countries?

