即时跟踪1　 用同位语改写下列句子 1．Allan Stewart，who is an Australian old man，is the holder of the world record for being the oldest graduate. →Allan Stewart，________________________，is the holder of the world record for being the oldest graduate. 2．AIDS，which has no cure，can always drive people to despair. →AIDS，_________________________，can always drive people to despair.

an Australian old man

a disease without cure