题目内容


Gary Locke , a Chinese-American, once______ as the governor of Washington for 8 years and now is U．S．Commerce Secretary．
A．had worked B．worked C．is working D．has been working
B
考查动词时态。华裔美国人骆家辉当过8年的华盛顿州的州长，如今是美国商务部长。这里有延续性时间状语，但叙述的是与现在没有联系的过去动作，用一般过去时。
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