1. [da;da] fu   lesson   mark   answer   teach   Hint Half-n-half Clue   2. [dou;du]   answer   study   question   read   Half-n-half Clue   3. [geng;geng] [zheng;zheng]   teach   lesson   correction   answer   Half-n-half Clue   4. [yan;yan] jiu   correction   write   teach   study   Half-n-half Clue   5. [jiao;jiao]   teach   answer   mark   study   Half-n-half Clue   6. kao shi   examination   answer   read   teach   Half-n-half Clue   7. wen ti   answer   learn   question   mark   Half-n-half Clue