下面列举的社会成员间的差别哪些属于自然差别：（）。

A、性别

B、年龄

C、职业

D、地位

E、种族

F、声望

They found a strange cup in the ancient tomb. It was said the cup             a drink. [ ]

A.used to have

B.was used to have

C.used to having

D.was used to having