题干
I was late for school this morning because the traffic was ________ by an accident. （ ）
A：used up
B：given up
C：locked up
D：held up
答案(点此获取答案解析）
D
I was late for school this morning because the traffic was ________ by an accident. （ ）
A：used up
B：given up
C：locked up
D：held up
