You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Rosetta_stone_for_package_hunting|1721" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1324" ns="0" title="Mua Thu Cho Em" />
      <page pageid="1454" ns="0" title="Kara&#039;s Colors" />
      <page pageid="1463" ns="0" title="Never Ending (Part One)" />
      <page pageid="1465" ns="0" title="Never Ending (Part Three)" />
      <page pageid="1597" ns="0" title="Lilly&#039;s Pets" />
      <page pageid="1647" ns="0" title="Chi La Giac Mo Qua" />
      <page pageid="1709" ns="0" title="2011 Nam Quốc Trung" />
      <page pageid="1734" ns="0" title="Gospel Camp" />
      <page pageid="1749" ns="0" title="Cho hen ba ren" />
      <page pageid="1750" ns="0" title="Cho heo ba ren" />
    </pages>
  </query>
</api>