My adviser interviewed me over the phone. He _________ my undergraduate record and thought I had a graduate degree.

Therefore, I was _________to the Ph.D.program. He welcomed me into his lab even after knowing the _________.

I began to get into a running start. I_________myself into reading every paper found and testing scientific questions. But four years later, I felt lost because I _________passed my qualifying exam. Then a friend asked me to volunteer as a barman at a gala (盛会). I was _________at first, having never worked behind a bar, _________ I said yes in the end. I spent an evening _________cutting fruit and doing other unskilled tasks. I was tired but also felt unbelievable - surprising how much_________I had.

Later, I realized the reason why I enjoyed this experience so much was that the __________of this job were exactly what I was __________from my Ph. D. program. It was only physically tiring, for the tasks I did were __________. At that point, I had not had a pause in __________as hard as I could for four years, and I was completely __________of the toll (损害)it was taking on my spirit. Since then,I've tried to give my mind more __________.