◎ 题干
Every Monday morning, students in our school would stand at attention, watching the national
flag ________.
[     ]
A. raising  
B. rising   
C. being risen  
D. being raised
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Every Monday morning, students in our school would stand at attention, watching the nationalflag ________. [ ]A. raisingB. risingC. being risenD. being rais…”主要考查了你对  【现在分词的被动式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。