his poem, he didn’t dare to submit it to the professor. A．Not having polished B．
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___________ his poem, he didn’t dare tosubmit it to the professor.
| A．Not having polished | B．Having not polished |
| C．Not polished | D．Not being polished |
试题答案
【答案】
A
【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。