correct the text by inserting one comma.\nsince liverpool, england, is the birthplace of the beatles the…

Brief Explanations:

When a sentence starts with a subordinate clause (here, "Since Liverpool, England, is the birthplace of the Beatles"), a comma should separate it from the main clause ("the city offers a tour..."). This comma clarifies the sentence structure and makes the meaning clear.

Answer:

Since Liverpool, England, is the birthplace of the Beatles, the city offers a tour that includes a visit to the childhood home of Paul McCartney.