Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

How do the propose no rather who can propose the date of the poll be varied by up to three months?
Who can propose the date of the poll be varied by up to three months?

What can or no make that where can a tribute to the fall of Katyn be found?
Where can a tribute to the fall of Katyn be found?

What kind of analysis did Harbison conclude in 2001 about Cestida no sorry the Lobata?

What kind of analysis did Harbison conclude in 2001 about the Lobata?