问题补充：
She tried to stay calm on the stage, but her trembling voice her nervousness.
A. gave away
B. gave up;
C. gave off
D. gave out
答案：
(答案→)A. gave away
B. gave up;
C. gave off
D. gave out
解析： 考查短语辨析。gave away 泄露，暴露，gave up 放弃，gave off 释放，gave out 颁发，句意：她努力在舞台上保持镇静，但是她发抖的声音暴露了她的紧张。所以选A。
