Question

do you know what the best book is ==what do you know is the

Answer 1

1.我明白楼主的意思是使用插入语变化,但是do you know很少这样用,一般是do you think/believe/suppose/expect等才可以.

2.就算是可以,前后的句序也不对应.

应该是：Do you know what the best book is?= What do you know the best book is?

即Do you know后面的宾语从句使用陈述句序,也就是说从句主语是the best book,而不是what；

而后句的结构也是“疑问词 + do you know + 陈述句序”,所以应该还是the best book is,而不是is the best book.

3.如果是do you think的话,则一般使用第二种结构,即使用插入语的“疑问词 + do you think + 陈述句序”的用法.