Since the beginning of AIDS,about 11.7 million people__died of it.这个为什么填has
问题描述：
Since the beginning of AIDS,about 11.7 million people__died of it.这个为什么填has
答
SINCE 自从,表示已经发生,所以用现在完成时态.单数是因为,把这些人看成一个整体.die of ,死于,