I felt embarrassingly _____ when I couldn't answer the professor's questionignorant barely memoir

I felt I felt happy还是I felt happily i only felt I felt so i ever felt before I felt very quality I felt so ashamed of you.felt I have felt it already i felt tired but happy I felt tired but excited ---------------- I felt the same way I felt a little homesick when I lost her I felt regretful.这里的felt应该用fell 还是felt ? i felt very hungry 为什么felt用过去时? I felt worthless,and my life felt meaningless. I felt like I was a bird i felt i like you very I felt like i was bird