问题
选择题
Class Two, our class became the Basketball Champion of our school.
A．Beating
B．to beat
C．Beaten by
D．Having beaten
答案
答案：D
考查非谓语动词作原因状语。beat 和逻辑主语our class之间是主谓关系，所以排除C；且beat 这一动作发生在主句谓语became之前，所以要用doing 的完成时。选D。
