Hello,<br/><br/>Please let me know which sentence should I use <br/><br/>1) I have two sisters who are settled in their respective lives.<br/><br/>2) I have two sisters who are settled in their respective life.<br/><br/>should I use the word life or lives?<h2></h2><h2></h2><h2></h2><h2></h2><h2>1) I am caable to maintain a balance between my professional or personal lives.<br/><br/>2) I am capable to maintain a balance between my professional and personal life.</h2><h2></h2><h2></h2>=<br/>should I use the word life or lives?