第21题: [单项选择]At the bank the day before yesterday, I was standing in a line ______ around some loose velvet ropes when a man started pushing me from behind. A. going B. snaking C. moving D. running 参考答案:B 答案解析:[解析] 动词辨析题。句中含义为人们排的队伍像蛇一样弯曲、松散,只有snake一词可以表示此意,而其他词的意思都无法表达“弯曲”这个意思,故选B。go around和move around都表示“走来