19.Everyone who comes to the party is given a wooden apple w

19.Everyone who comes to the party is given a wooden apple with _____ own names cut in it as a souvenir.
　　A.his B.her C.their D.our
everybody in the class must give in _exercise book within the given time.
a their b our c his d her
为什么哈,不要张贴一些规则,具体点.