By Hyphens, Semicolons

1. You can't separate the subject from the verb. 2. No colon needed.

Please can someone help me with the following: 1. Sarah wanted her life to be remembered; therefore, she staged a pageant. (Should there be a comma after Sarah? And should I put a semicolon after remembered?) 2. A first class employee is: dependable, loyal, and efficient. (Since first class...