Question

there are many differences between the toons

there are many differences between the two.I really don't know____
A.what should I choose
B.shich I should choose
C.which should I choose
答案是B．其它错的理由?

Answer 1

选B.which I should choose.
理由：I really don't know 后为一宾语从句.宾语从句部分用陈述语序.B正确.A与C语序不对.另外,不能用what,因为上文提到两者间的不同,即给出了范围,所以下文对应的是“哪一个”,而不是“什么”.