how to do the homework, I went to ask my teacher for help. A．Not to know B．Not
howtodothehomework,Iwenttoaskmyteacherforhelp.A．NottoknowB．NotknowingC．KnowingnotD．No...
how to do the homework, I went to ask my teacher for help. A．Not to know B．Not knowing C．Knowing not D．Not known
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| B |
| 考查非谓语动词。分词的否定式应在其前面加not,主语I 与动词know 之间是主动关系，所以用现在分词。故选B。 |
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