--I’m a little hungry Mum.--There are some cakes on the plate. You can take .A. itB. oneC

问题补充：

--I’m a little hungry, Mum.

--There are some cakes on the plate. You can take .

A. it

B. one

C. that

D. This

答案：

A. it

(答案→)B. one

C. that

D. This

解析：句意：妈妈，我有点饿了。盘子里有些蛋糕。你可以吃一个。One泛指盘子里的任何一个，It为特指某一事物，that指代那一个，this指代这一个；故选B。