______ what to do, he went to the manager for help.A、Not to knowB、Not knowingC

游客2024-06-29 33

问题 ______ what to do, he went to the manager for help.

选项 A、Not to know
B、Not knowing
C、Not having known
D、Having not known

答案 B

解析本句中现在分词knowing作原因状语，其否定形式是在前面直接加not。例如：Not having received un answer, I decided to write another letter．(没有得到答复，我决定再写一封信。)故选B。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3655757.html

相关试题推荐

随机试题

最新回复(0)

Shehurriedofftothemanager’soffice,herheartpoundingwithafearfuljoy.A