Is her birthday in December?A.Yes,she is.B.Yes,it is.C.No,she isn't.还要说出理由!好的话,还有额外悬赏分!

问题描述:

Is her birthday in December?
A.Yes,she is.B.Yes,it is.C.No,she isn't.还要说出理由!
好的话,还有额外悬赏分!

B
问题对象是her birthday
这是一个物体
用it指代