问题补充：
—Who is this boy?
—Sorry, I .
A. not know
B. know not
C. don’t know
D. not do know
答案：
A. not know
B. know not
(答案→)C. don’t know
D. not do know
解析：句意：这个男孩是谁？对不起，我不认识。know是实意动词，对于实意动词的否定形式，一般用do/does来帮忙构成。故选C.
第一句子网 - 唯美句子、句子迷、好句子大全
时间：2019-04-23 01:13:26
—Who is this boy?
—Sorry, I .
A. not know
B. know not
C. don’t know
D. not do know
A. not know
B. know not
(答案→)C. don’t know
D. not do know
解析：句意：这个男孩是谁？对不起，我不认识。know是实意动词，对于实意动词的否定形式，一般用do/does来帮忙构成。故选C.
