问题
选择题
Mrs. Weng came back from France in 2010. She _________ there for four years.
A. works B. worked C. has worked
答案
答案：C
时态的考查。For加时间段应该是现在完成时态的标志。
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Mrs. Weng came back from France in 2010. She _________ there for four years.
A. works B. worked C. has worked
答案：C
时态的考查。For加时间段应该是现在完成时态的标志。