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
网友回答
A. had worked
(答案→)B. worked
C. is working
D. has been working
解析：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。