单选题 All the following sentences have an appositive EXCEPT
A．We call them moon-cakes.
B．But they have to convince everyone, especially people living in the area.
C．We both arrived at the same conclusion.
D．People, old and young, took to the streets to watch the parade.

【正确答案】 A

【答案解析】[解析] 句子成分题。A中we是主语，call是谓语，them是宾语，moon-cakes是宾语补足语，不含有同位语，故为答案。B中especially people living in the area为everyone的同位语；C中both为we的同位语；D中old and young为people的同位语。