My mother,( )whether anyone would come home to help her,had

My mother,( )whether anyone would come home to help her,had to prepare the supper all by herself.
A.did not know
B.not knowing
C.had not known
D.having not know
为什么选B?D为什么不行?
wertyzj 1年前 已收到1个回答 举报

mm6289 幼苗

共回答了25个问题采纳率:92% 举报

分词的否定式都必须是在分词前加not,而不是在后面
如:Not having received her letter,the manager caller her from his office.
He left the room,not saying a single word.

1年前 追问

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wertyzj 举报

你好,所以D项如果改成not having know 也可以么?
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