Question 21 is based on the passage you have just heard.

Passage Two

听力原文

    When I turned 12, I worked summers at my father’s small brick-cleaning business. I remember the harsh acid smell of the cleaning solution, and the scraping sound of stiff iron brushes against rough brick. It was tempting to hurry a job—just to finish. But (19) [anybody who worked for Thomas Kahoon had to meet his standards, and that included me. If I messed up, he made me stay late until I got it right. My father wasn’t being mean. He demanded the same of himself.] Every brick he cleaned on a house stood out like a red jewel in a white setting. It was his signature.

    In 1970, when I was 20, I got married and moved out my parents’ modest place into a housing project. (20) [Drugs and gang violence were just beginning to plague the projects.] Some of my friends went to jail. Some were killed. My wife Verllen was 18, and nobody gave our marriage a chance. But we believed in each other, and our faith made us strong. (21) [When we married, I worked as a stock clerk at Southwest Super Foods. It was hard, tedious work.] Each Friday night a truck came, with cases of food that had to be unloaded, priced and placed on shelves. Most of stock clerks tried to get Friday night off, but I was always ready to work. By Saturday morning, all the cans and jars in my aisle were placed with labels facing smartly out, like a line of soldiers on review. That was my signature. I took pride in a job nobody wanted.

21. What do we learn about the speaker as a stock clerk?

解析：C。录音后半部分提到，结婚以后，讲话者在西南食品超市担任仓库管理员，这份工作又辛苦又枯燥。因此C选项符合题意，hard and tedious为原词复现。

错项排除：录音中提到，讲话者需要将一箱箱食物卸货、贴上价签并摆上货架，因此所做工作并非只有卸货，A选项错误。录音中提到了两次signature，一处是描述父亲的工作成果，一处是描述自己的工作成果，但这里的signature并不表示“签名”，而是指讲话者的“标志”，故排除B选项。录音最后提到，大多数仓库管理员想尽办法在周五晚上请假，但讲话者从来都保持着准备工作的状态，因此讲话者是愿意在周五晚上工作的，而不是被要求的，故排除D选项。