你好.yet在这里是副词,与although(though)连用时yet没有问题：
Though she was busy with her work, yet she managed to find time to stay with her family
虽然她忙于工作,但她还是挤出时间与家人在一起.
===She was busy with her work ,andyet she managed to find time to stay with her family(这里是副词,and yet ==but )
==== She was busy with her work , yet she managed to find time to stay with her family（这里是连接词,解释为：虽然-- -,但是 ---==but ）
（请注意比较）