his poem he didn’t dare to submit it to the professor.A. Not having polishedB. Having no

问题补充：

his poem, he didn’t dare to submit it to the professor.

A. Not having polished

B. Having not polished

C. Not polished

D. Not being polished

答案：

(答案→)A. Not having polished

B. Having not polished

C. Not polished

D. Not being polished

解析：本题考查非谓语动词的用法。分词的否定式是在分词前面直接加not.此处句子主语he是polish的执行者，要用现在分词。