问题补充:
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:
A. While
B. Though
C. Until
(答案→)D. Once
解析: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。