C．building windows that help save your energy costs

　　D．building your doors completely to your taste

　　解析：选C。细节理解题。由这两则广告的内容可以看出，这两家公司都擅长建造节能的窗户。

　　10．The two ads are most probably about ________.

　　A．managing money matters

　　B．environmental protection

　　C．architecture styles

　　D．home improvement & design

　　解析：选D。主旨判断题。由这两则广告的标题可以直接得出答案。

　　11．If you prefer comfort as well as energy efficiency, you can_____.

　　A．call (403)982－1107 or(403)720－8055

　　C．call at All Weather Windows or Award Windows & Doors

　　D．visit Renovations Showroom or Award Windows & Doors

　　解析：选B。细节理解题。题干的关键词是comfort和energy efficiency，可知第二个广告能满足这些要求，B项的两种联系方式正是第二个广告的联系方式。