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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