问题
选择题
Miss Li ________ as a biology teacher for fifteen years in our school, and now she is Party secretary of our city.
A．works
B．worked
C．had worked
D．has worked
答案
答案：B
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Miss Li ________ as a biology teacher for fifteen years in our school, and now she is Party secretary of our city.
A．works
B．worked
C．had worked
D．has worked
答案：B