Cambridge Ket for school direct :  workbook /. 
 KET for schools 

 - New York :  Cambridge University Press,  2010. 
 - 48 p. :  ill ;  28 cm. 
 - Cambridge books for Cambridge exams. .
<br/><br/> Includes a CD-ROM.  without answers. 
<br/><br/><label>ISBN: </label>9780521167185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Examinations, questions, etc.<br/>English language--Textbooks for foreign speakers.