阅读下面短文，从短文后各题所给四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑.

    When I spent the summer with my Grandpa in Warwick, he sent me to Miss Bee's store. 1 the counter was Miss Bee. A pair of glasses teetered(摇摇欲坠) on the 2 of her nose, gray hair was 3 on her head.

    “Excuse me. I need to get these.” I said. “So?” She pushed her glasses 4 her nose. “There's no one here except you and me and I'm not your 5. Go get them. If you're lucky you'll finish shopping by sundown.” Sundown was five hours 6. I wasn't sure l would 7 it.

    How could I hope to find anything on the packed, jumbled(乱堆的) shelves around me?

    I visited Miss Bee several times a week. Sometimes she short-charged me. Other times she overcharged. 8 she sold me a/an 9 newspaper instead of one that was current. Going to the store was more like going into battle.

    “That bread is only twenty-nine cents!” I corrected her one afternoon. I had watched the numbers change on the cash register(收款机) closely, and Miss Bee had added 35 cents. She didn't seem 10 that I had caught her 11. She just looked at me and 12 the price.

    All summer I learned the hard way to 13 my list. But she still found ways to 14. me into making mistakes. No sooner had I memorized the items' location on the shelf than Miss Bee 15 the shelves and made me hunt for 16 all over again. The morning I was to 17 to Brooklyn, I stopped in to get a packet of gum.

    “All right,” she said. “What did you learn this summer?” She was mean! I pressed my lips together. To my 18, Miss Bee laughed. “I know what you think of me,” she said. “ but when you get older you'll be glad our paths 19!” Glad I met Miss Bee? The idea was 20.

    Now I grow up and I finally understand I really learned a lot from Miss Bee.