问题
选择题
a student is found cheating in the exam, he will not escape from being punished.
A．While
B．Though
C．Until
D．Once
答案
D
题目分析：句意：一旦一个学生被发现考试作弊，他不会逃脱被处罚的。A. While当…时候，虽然，尽管，B. Though虽然，C. Until直到， D. Once一旦，选D。