◎ 题干
Tom hasn’t phoned us for a long time. What do you suppose _____ to him?      
[       ]
A. was happening    
B. to happen    
C. has happened    
D. happened
◎ 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“Tom hasn’t phoned us for a long time. What do you suppose _____ to him? [ ]A. was happeningB. to happenC. has happenedD. happened…”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。