题目内容
【题目】Thousands of protesters _______ major roads in the central business area of the city for weeks, leading to much inconvenience for many Hong Kong citizens.
A. knocked off B. blocked off
C. knocked out D. blocked out
【答案】B
【解析】
试题分析: 句意:成千上万的抗议者堵塞了城市商业中心的主干道,给许多香港市民带来了很多不便。block off “(用路障)封锁,堵住”,符合句意。knock off“停止某事”;knock out “使昏睡”;blocked out“遮住(光线或声音)”。故选B项。
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