题目内容
2. Jim the army four years ago. Hea soldier for 4 years.
A. has been;joined B. joined;has been C. joined;joined D. has been;has been
2.B
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题目内容
2. Jim the army four years ago. Hea soldier for 4 years.
A. has been;joined B. joined;has been C. joined;joined D. has been;has been