add a comma or semicolon if needed. otherwise, submit the text without any additional punctuation.\n\nin…

add a comma or semicolon if needed. otherwise, submit the text without any additional punctuation.\n\nin 2008, jamaican sprinter usain bolt won both the 100- and 200-meter races moreover, he became the first man in olympic history to hold the world record for both events.
Answer
Brief Explanations:
The sentence has two independent clauses. "In 2008, Jamaican sprinter Usain Bolt won both the 100 - and 200 - meter races" is one independent clause. "Moreover, he became the first man in Olympic history to hold the world record for both events" is another independent clause. When connecting two independent clauses with a conjunctive adverb (here "moreover"), a semicolon is used before the conjunctive adverb.
Answer:
In 2008, Jamaican sprinter Usain Bolt won both the 100 - and 200 - meter races; moreover, he became the first man in Olympic history to hold the world record for both events.