---When did you move to Beijing? ---Last year. But I in a school in Japan for 8 years.
A. has taught
B. taught
C. has been taught
D. has been teaching
网友回答
A. has taught
(答案→)B. taught
C. has been taught
D. has been teaching
解析：考查时态：句意：--你什么时候搬到北京去？--去年，但我在日本的一所学校教了8年的书。因为现在在北京，所以在日本的8年是过去的八年。用一般过去式，选B。