QUES: The primary method of treatment for nasal polyps is surgery

correct the punctuation.

CORRECTED: The primary method of treatment for nasal polyps is surgery.

QUES: It read something like this a story Wed seen enough job ads citing a list of technologies and experience and they didnt seem to bring in interesting candidates

correct the punctuation.

CORRECTED: It read something like this a story. We'd seen enough job ads citing a list of technologies and experience, and they didn't seem to bring in interesting candidates.

QUES: The imperial government in St Petersburg used it in the 19th century to exile their opponents while in the 20th century the communist government by then in Moscow used the area for the worlds largestever chain of prison camps called the Gulag

correct the punctuation.

CORRECTED:
The imperial government in St Petersburg used it in the 19th century to exile their opponents, while in the 20th century the communist government, by then in Moscow, used the area for the world's largest-ever chain of prison camps called the Gulag.