Answer:
1. She took the return flight from Miami; It arrived in Newark in two hours.
2. After she found her baggage; she looked around for her friend.
3. The airport was crowded with passengers; She called for a porter.
Explanation:
Adding semicolon (;) in the sentence indicates a pause between two main clauses. If you wonder why I didn't use a comma, it's because a semicolon is used to separate two ideas (two independent clauses) that are closely related. They can also be used when listing complex ideas or phrases that use commas within them. Essentially, a semicolon is like a comma with more meaning or a colon with more flexibility.
