I was driving a school bus to make ends meet and living with a friend of mine
driving 和 was 一起构成谓语（过去进行时）表示那时我开校车度日（取得收支平衡）与一个朋友共同生活.
and后的living实际上省略了was,是与was driving 并列的谓语.
she handed me an earring saying I should keep it in case someone claimed it
她把耳环交给我说要我保管,万一有人来认领.
其中的saying是现在分词引导出一个伴随状语（有边说边交给我的意思）.