◎ 题干
It's four years since Mike _____ to Tibe.                    
[     ]
A. has been                
B. is coming                    
C. will come                
D. came
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It's four years since Mike _____to Tibe. [ ]A. has been B. is coming C. will comeD. came…”主要考查了你对  【实义动词的过去式】【主谓一致】  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。