QUES: proud Duke it has succeeded well for you

correct the punctuation.

CORRECTED: proud Duke, it has succeeded well for you.

QUES: In May of that year he was nearly killed when being shown a new hydraulic pumping station by one of his friends

correct the punctuation.

CORRECTED: In May of that year he was nearly killed when being shown a new hydraulic pumping station by one of his friends.

QUES: Prepare the foods by taking the colored candies from top to bottom then serve it

correct the punctuation.

CORRECTED:
Prepare the foods by taking the colored candies from top to bottom, then serve it.