I asked him what he hoped his birthday.A. on onB. at at C. to toD. for for

问题补充：

I asked him what he hoped his birthday.

A. on on

B. at at

C. to to

D. for for

答案：

A. on on

B. at at

C. to to

(答案→)D. for for

解析：答案选D。比较：He hoped for a bike for his birthday. 若对其中的 a bike 提问即得到：What did he hope for for his birthday?