单选题 10.  It was the training that he had as a young man ______ made him such a good engineer.
【正确答案】 D
【答案解析】 本题考查强调句的用法。强调句型结构为：it is /was+被强调部分+that。本题目是that的考查。这也是专升本英语考试常见考点，几乎每年必考。本句意思为：正是他年轻时的训练才使他成为一名优秀的工程师。