The student version usually has no answer key. The instructor’s manual is sold separately. Some learner forums share unofficial keys, but accuracy varies.
As of the last update, the Ministry of National Education does not directly release full "Yabanci Dilim Turkce 6" PDFs for free public download. However, they provide and teacher’s guidebooks on the eba.gov.tr portal. To access these: yabanci dilim turkce 6 pdf