I、单项填空 (共 15 小题，每小题 1 分，满分 15 分) 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. Zhouzhou is _____ success as a conductor, _____ disabled child as he is.
A. a, the B. a, / C. /, a D. the, a
22. —I’m interested in that beautiful MP3 player . What do you charge for it ?
—$125.
— ________, but I can’t afford it .
A．Please lower the price B．It’s really nice
C．It’s worth that D．That’s too dear
