Question

add commas where needed
you should walk quickly or even run as fast as you can if you dont want to be late
add a nonrestrictive element using commas
florida is a fun place to visit

Explanation:

For the first task, commas are added to set off the dependent clause at the end of the sentence. For the second task, a non-restrictive element (an extra descriptive phrase about Florida) is added and set off with commas to show it's not essential to the core meaning of the sentence.

Answer:

1. You should walk quickly, or even run as fast as you can, if you don't want to be late.
2. Florida, a sunny, palm-fringed destination, is a fun place to visit.