题目

One of my father’s favorite sayings as I was growing up was “Try it!” I couldn’t say I didn’t like   36  , whatever it might be,   37   I tried it. Over the years I’ve come to   38 how much of my success I owe to my    39    of those words as one of my values. My   40 job was just one I decided to try for a couple of years until I  41   what I want to do as a career（职业）. 42   I believed I would work for a few years, get married, stay home and raise a family, so I didn’t think the job I took  43   that much. I couldn’t have been more  4 下列平原中，主要由侵蚀作用形成的是 [　　] A．东欧平原 B．亚马孙平原 C．密西西比河平原 D．印度河——恒河平原