Although he is often tired __his work,he is never tired____his job.In fact,he enjoys it.with of 如何填?

Although he is often tired __his work,he is never tired____his job.In fact,he enjoys it.
with of 如何填?

1、tired with ==因 .而疲惫
2、 tired of == 厌倦.
他经常被工作搞得疲惫不堪,但他从来不曾厌倦过他的工作.实际上,他很喜欢他的工作.