After the birth of my second child, I got a job at a restaurant. Having worked with an experienced 36 for a few days, I was 37 to wait tables on my own. All went 38 that first week. When Saturday night came, I was luckily 39 the tables not far from the kitchen. 40 , I still felt a little hard to carry the heavy trays (托盘).

Before I knew it, the 41 was full of people. I moved slowly, 42 every step. I remember how 43 I was when I saw the tray stand near the tables, it looked different from the one I was 44 on. It had nice handles (手柄)，which made it 45 to move around. I was pleased with everything and began to 46 I was a natural at this job.

Then, an old man came to me and said, "Excuse me, dear, my wife and I loved 47 you work. It seems your tray stand has been very 48 to you, but we are getting ready to 49 now, and my wife needs her 50 back."

At first his 51 did not get across. "What was he talking about!" Then I got it. I had set my trays on his wife's orthopedic walker (助步器). I stood frozen as ice, but my face was 52 . I wanted to get into a hole and 53 .

Since then, I have learned from many mistakes such as the one I just 54 , I have learned to be more 55 and not to be too sure of myself.

36. A. manager B. assistant C. cook D. waitress

37. A. promised B. invited C. allowed D. advised

38. A. well B. quickly C. safely D. wrong

39. A. left B. given C. brought D. shown