题目内容
选择填空:
By 1994 Marko ______ as an engineer for fourteen years.
[ ]
A. has worked B. had worked
C. worked D. was working
答案:B
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题目内容
选择填空:
By 1994 Marko ______ as an engineer for fourteen years.
[ ]
A. has worked B. had worked
C. worked D. was working