题目内容：
Some 40 percent of the hired hands left before they（）their term of service.A.finish
B.finished
C.would finish
D.have finished
参考答案：
选择题：Some 40 percent of the hired hands left before the
- 题目分类：河南大学-大学英语（一）
- 题目类型：选择题
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A.finish
B.finished
C.would finish
D.have finished