Not knowing what to do, he went to his parents for help.为何要用knowing?可以用know,known吗?

Not knowing what to do,he went to his parents for help.为什么是not knowing不是no knowing? “the foolish man stood there not knowing what to do”为什么用“knowing”? Courage is knowing what not to fear .what后省略了什么?为什么有to 英语词汇题3.He stood there ,not knowing what to do.3.He stood there ,not knowing what to do.A.helpful B.helplessly C.helpless D.helpfully she held back ,not knowing what to do or sayshe held back ,not knowing what to do or say 啥意思? Not knowing what to do,he went to his parents for help.什么意思 He stood there (),not knowing what to do.A helpless B helplessly Not knowing what appropriate measures to deal with the situation.怎么翻译成中文? The students sat there,___ what to doA.doesn't knowing B.didn't knowing C.not know D.not konwing Not knowing what to do, he went to his parents for help.为何要用knowing?可以用know,known吗? （）what the situation would be like,they decided to keep silent.A、Knowing not B、Not know C、No the look on her face was___of someone not knowing what to do nextA.that B.which C.one D.what ___help the people in the snowstorm in the south made him worried.A not known how to B unknown what to do to C His knowing not how to D his not knowing how to --exactly what I wanted,I didn't spend much time shopping.a.To know b.knowing c.Not knowing d.Having known What hurts more than losing you is knowing you're not fighting to keep me.谁知道啥意思. 23.___________ what to do,he decided to go to Mr Black for help.A.Not knowing B.Not having kno She stood there____what to do.A.knew notB.knowing notC.not knowD.not knowing Knowing what you can not do is more important than knowing wha