参考答案

正确答案：C
解析：betray (1) 出卖；背叛 (2) 泄露；显露：Her face betrayed her nervousness. 她的面部表情显露出她很紧张。delay: 迟；延缓；耽搁：The letter was delayed three days by the train accident. 这次火车事故使这封信耽搁了三天。display: 展示；给看；表现：The children's work was displayed on the wall. 孩子们的作品在墙上展出来了。stray: 游荡；迷失；漂泊：She strayed from the road and got lost. 她走离了正路，迷途了。