A cake made of wheat costs less than ---made of rice A one B what Cit D which为什么不选it，
问题描述：
A cake made of wheat costs less than ---made of rice A one B what Cit D which
为什么不选it，
答
A
答
D
答
A one
one 作为代词,指代前面出现的 a cake
答
D which
定语从句