【题目】Dave was a ________. Because of his misconduct in class, the whole class had to stay after school.
A. wet blanket B. leading light
C. black sheep D. dark horse
在线课程【答案】C
【解析】
考查名词短语辨析。句意：Dave是害群之马，由于他上课表现不好，下课后全班都不得不留下来。A. wet blanket扫兴的人；B. leading light重要人物；C. black sheep害群之马；D. dark horse黑马。此处指害群之马，故选C.