问题

I don’t doubt_ he took the firstplace in his class; but I do doubt_ he will succeed in the end.

A:While
B:but which
C:whether whether
D:that whether

正确答案是：

同类题型

It is what parents say and do that really matters in children’s character training — _____ [ ]

下列名句出处，表述有误的一项是（）

Thanks _____ the photo of your family．

Every means has been _______. No one is effective.

How many times have you been to China?— In fact, it is the first time that I ______ here