He works as an engineer now, but he on a farm for three years.A. has workedB. workedC. wa

发布时间：2020-08-16 10:05:20

He works as an engineer now, but he      on a farm for three years.
A. has worked
B. worked
C. was working
D. had worked

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A. has worked
(答案→)B. worked
C. was working
D. had worked
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