题目内容
【题目】 Up to now nobody _______ do this better than Charlie Chaplin.
A. Is able to B. has been able to
C. have been able to D. are able to
【答案】B
【解析】
试题分析: 考查动词的时态。句意:直到现在没有人能做的比查理好。Up to now,到现在为止,是现在完成时的标志,所以选B
考点 : 考查动词的时态
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