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外语
By the time I left the School, the professor ______ that class for two years.
By the time I left the School, the professor ______ that class for two years.
admin
2009-07-28
39
问题
By the time I left the School, the professor ______ that class for two years.
选项
A、has taught
B、had taught
C、will have taught
D、will teach
答案
B
解析
本题考查过去完成时的用法。by the time若后接的从句是一般过去时,则主句用过去完成时;若后接的从句表示将来的时间,则主句用将来完成时。根据此原则,“毕业”是过去发生的事情,因此选项B为正确答案。
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本试题收录于:
大学英语三级B级题库大学英语三级分类
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大学英语三级B级
大学英语三级
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