题目内容
（请给出正确答案）
[单选题]
During the peak hours they were（）by the heave traffic.
A.held forward
B.held backward
C.held down
D.held up
提问人：网友欧阳灿
发布时间：2022-07-19
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A、Rush hour
B、Peak season
C、Bad weather
D、Important meetings
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