21. The school to which David ______ his paintings is beautiful.
A. donated B. developed C. achieved D. selected
22. Have you watched the TV play Man Qiu, and _____ leading actor is my favorite?
A. its B. it’s C. whose D. which
23. I don’t care how much I earn, I just want a _______ job to test my ability.
A. creating B. awarding C. challenging D. competing
