◎ 题干
— What is the price of gas these days?  
— Oh, it _______ sharply since last month.
[     ]
A. is rising    
B. has risen
C. is arising  
D. has arisen
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— What is the price of gas these days? — Oh, it _______ sharply since last month. [ ]A. is risingB. has risenC. is arising D. has arisen…”主要考查了你对  【现在完成时】  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。