单选 the book,the boy didn't know the answers to the questionsa not to readb to notreadc having not readd not having read
问题描述：
单选 the book,the boy didn't know the answers to the questions
a not to read
b to notread
c having not read
d not having read
答
d
答
书还没有读,那个男孩不知道怎么回答问题.
中间有逗号,后面是一个完整的句子,所以a和b选项明显不对,这里涉及的是分词作状语,所以答案在c和d选项中,一般规定的用法是not置前,not having read,作伴随状语,记住就行了.