EX-99.77K CHNG ACCNT 4 ex77k-180.txt CENTENNIAL CALIFORNIA TAX EXEMPT TRUST October 17, 2008 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-7561 Dear Sirs/Madams: We have read the Exhibit to Sub-Item 77K of Centennial California Tax Exempt Trust's amended Form NSAR-B dated October 17, 2008, and we agree with the statements made therein. Yours truly, /s/ DELOITTE & TOUCHE LLP Denver, Colorado