◎ 题干
After 20 months of construction, Shanghai—Hangzhou high—speed railway        good use since October 26th.
[     ]
A. was put to                          
B. has been put to            
C. has put to                          
D. is putting to  
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“After 20 months of construction, Shanghai—Hangzhou high—speed railwaygood use since October 26th.[ ]A. was put to B. has been put toC. has put to D. is putt…”主要考查了你对  【被动语态】【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。