gratitude

我对老师的帮助充满感激之情。

I feel deep ___gratitude for my teacher's help.

校长在毕业典礼上向老师们表达了诚挚的谢意。

The principal expressed his deep ___gratitude to the teachers at the graduation ceremony.

再次，对您的善举表示诚挚的感激。

Again, sincere ___gratitude for your kind work.