问题详情：
When she lied to her teacher, her red face ____ her ____. After all, she was an honest girl in general.
A. sold…out B. gave…away C. set…up D. let…down
【回答】
B。give away出卖；sell out卖光；set up建立，安排；let down使失望。句意：当她向老师撒谎时脸红了，这一点就暴露了自己。毕竟她总体来说是一个诚实的姑娘。
知识点：动词
题型：选择题
